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Polymer Zero-Order Half-Wave Plates


  • True Zero-Order Half-Wave Plates
  • Offered at Discrete Wavelengths Between 405 nm and 1550 nm
  • Lower AOI Dependence than Quartz Wave Plates
  • Available in 1/2", 1", and 2" Diameters

WPH10E-532

Ø1" Half-Wave Plate
for 532 nm

Edge
Marking
Indicates
Fast Axis

WPH10ME-633

Mounted Ø1" Half-Wave Plate for 633 nm

WPH05ME-405

Mounted Ø1/2" Half-Wave Plate for 405 nm

WPH20ME-1064

Mounted Ø2" Half-Wave Plate for 1064 nm

Related Items


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Quarter-Wave Plate
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The fast axis of the mounted Ø1/2", Ø1", and Ø2" wave plates is engraved on the side of the housing. Internal and external SM threads allow for easy integration with Thorlabs' SM-threaded components.
Half-Wave Plate
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Ø1" Half-Wave Plate Mounted in the RSP1D Rotation Mount

Features

  • True Zero-Order Half-Wave Plates at Discrete Design Wavelengths from 405 nm to 1550 nm
    • Mounted Ø1/2" Wave Plates
    • Unmounted and Mounted Ø1" Wave Plates
    • Mounted Ø2" Wave Plates
  • Excellent Performance at AOIs up to 20° (See Graphs Below)
  • Retardance Accuracy: <λ/100
  • Retardance Uniformity: <5 nm (RMS)
  • Broadband AR Coating for ≥95% Transmission: 350 - 700 nm, 650 - 1050 nm, or 1050 - 1700 nm
  • Polymer Zero-Order Quarter-Wave Plates Available
  • Custom Wave Plates Available (See the Custom Capabilities Tab)

Thorlabs' Polymer Half-Wave Plates are fabricated from a liquid crystal polymer (LCP), which is laminated between two N-BK7 glass windows. The unmounted Ø1" version has the fast axis marked on the edge of the glass for ease of alignment. We also manufacture Ø1/2", Ø1", and Ø2" versions in an SM05-threaded (0.535"-40), SM1-threaded (1.035"-40), or SM2-threaded (2.035"-40) housing, respectively, which are engraved with the item number and the fast axis orientation. The mounted wave plates are epoxied into the housing; attempting to remove the wave plate from the housing may result in damage to the wave plate. The glass plates have a broadband AR coating for either the 350 - 700 nm range, the 650 - 1050 nm range, or the 1050 - 1700 nm range deposited on the glass-to-air interfaces.

LCP wave plates are designed to be true zero-order wave plates, which can provide stable retardance over a large range of angles of incidence (AOI). This design is advantageous for applications that require low sensitivity to AOI. A polymer wave plate can be used at an AOI up to 20° with only a 5% retardance decrease, compared to less than 2° for standard quartz wave plates (see graphs below). Additionally, due to a well established production process using spin coating, our polymer wave plates have excellent retardance uniformity across the large clear aperture with low optical losses and low wavefront distortion of <λ/4 at 633 nm.

These polymer wave plates can be mounted in Thorlabs' rotation mounts, as shown in the image above and to the right. We also offer OEM and custom polymer wave plates upon request. The target wavelength, retardance, coating, mechanical housing, and dimensions can be customized to meet unique optical designs. For more details please see our Custom Capabilities tab or contact Tech Support.

Our polymer quarter-wave plates offer true zero-order retardance for changing between linear and circular polarizations. Alternatively, we also offer mounted quartz zero-order quarter-wave plates and half-wave plates for applications that would benefit from a higher surface quality, increased retardance accuracy, or a higher damage threshold.


Click to Enlarge
The plot above shows a comparison between the performance of a WPH10M-633 quartz half-wave plate and a WPH10E-633 liquid crystal polymer half-wave plate with respect to angle of incidence.
Wave Plate Selection Guide
Achromatic Superachromatic Quartz Zero-Order
Half-Wave
Quartz Zero-Order
Quarter-Wave
Polymer Zero-Order
Half-Wave
Polymer Zero-Order
Quarter-Wave
Multi-Order Dual Wavelength Telecom Polarization Optics
Spatial Uniformity of Retardance
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Typical uniformity of retardation across the clear aperture of a Ø1" half-wave plate. The data above was obtained using the WPH10E-532 wave plate. This plot shows a retardance variation of 1.38 nm (RMS).
Common Specificationsa
Wave Plate Diameter 0.50" (12.7 mm) 1.00" (25.4 mm) 2.00" (50.8 mm)
Clear Aperture Ø0.39" (Ø9.8 mm) Ø0.90" (Ø22.8 mm) Ø1.90" (Ø48.3 mm)
Wave Plate Thicknessb 2.0 mm (0.08") 3.2 mm (0.13") 6.4 mm (0.25")
Average Reflectancec
(Per Coated Surface)
<0.5%
Retardance λ/2
Retardance Accuracyd <λ/100
Retardance Uniformity (RMS)d <5 nm
Material Liquid Crystal Polymer Between N-BK7 Glass Plates
Transmitted Wavefront Error <λ/4 @ 633 nm
Surface Quality 60-40 Scratch-Dig
Temperature Stability <0.08 nm/°C over Operating Temperature Range
Operating Temperature Range -20 to 60 °C
Parallelism in Unmounted Wave Plates <5 arcmin
Parallelism in Mounted Wave Plates <20 arcmin
  • The complete specifications for each item can be viewed by clicking on the blue icons (More Info Icon) in the tables below.
  • Thickness of the Optic
  • Coating is deposited on air-to-glass interfaces only.
  • Over the entire clear aperture.
  • The power density of your beam should be calculated in terms of W/cm. For an explanation of why the linear power density provides the best metric for long pulse and CW sources, please see the "Continuous Wave and Long-Pulse Lasers" section in the Damage Thresholds tab.
Item # Design Wavelength Transmission at Design Wavelength Description Info
WPH05ME-405 405 nm ≥95% Ø1/2" Mounted info
WPH10E-405 Ø1" Unmounted info
WPH10ME-405 Ø1" Mounted info
WPH20ME-405 Ø2" Mounted info
WPH05ME-445 445 nm ≥95% Ø1/2" Mounted info
WPH05ME-488 488 nm ≥96% Ø1/2" Mounted info
WPH10E-488 Ø1" Unmounted info
WPH10ME-488 Ø1" Mounted info
WPH20ME-488 Ø2" Mounted info
WPH05ME-514 514 nm ≥97% Ø1/2" Mounted info
WPH10E-514 Ø1" Unmounted info
WPH10ME-514 Ø1" Mounted info
WPH20ME-514 Ø2" Mounted info
WPH05ME-532 532 nm ≥98% Ø1/2" Mounted info
WPH10E-532 Ø1" Unmounted info
WPH10ME-532 Ø1" Mounted info
WPH20ME-532 Ø2" Mounted info
WPH05ME-546 546 nm ≥98% Ø1/2" Mounted info
WPH10E-546 Ø1" Unmounted info
WPH10ME-546 Ø1" Mounted info
WPH20ME-546 Ø2" Mounted info
WPH05ME-588 588 nm ≥98% Ø1/2" Mounted info
WPH05ME-633 633 nm ≥98% Ø1/2" Mounted info
WPH10E-633 Ø1" Unmounted info
WPH10ME-633 Ø1" Mounted info
WPH20ME-633 Ø2" Mounted info
WPH05ME-670 670 nm ≥98% Ø1/2" Mounted info
WPH10E-670 Ø1" Unmounted info
WPH10ME-670 Ø1" Mounted info
Item # Design Wavelength Transmission at Design Wavelength Description Info
WPH05ME-780 780 nm ≥97% Ø1/2" Unmounted info
WPH10E-780 Ø1" Unmounted info
WPH10ME-780 Ø1" Mounted info
WPH20ME-780 Ø2" Mounted info
WPH05ME-808 808 nm ≥96% Ø1/2" Mounted info
WPH10E-808 Ø1" Unmounted info
WPH10ME-808 Ø1" Mounted info
WPH20ME-808 Ø2" Mounted info
WPH05ME-830 830 nm ≥97% Ø1/2" Mounted info
WPH10E-830 Ø1" Unmounted info
WPH10ME-830 Ø1" Mounted info
WPH20ME-830 Ø2" Mounted info
WPH05ME-850 850 nm ≥97% Ø1/2" Mounted info
WPH05ME-980 980 nm ≥99% Ø1/2" Mounted info
WPH10E-980 Ø1" Unmounted info
WPH10ME-980 Ø1" Mounted info
WPH20ME-980 Ø2" Mounted info
WPH05ME-1030 1030 nm ≥99% Ø1/2" Mounted info
WPH05ME-1053 1053 nm ≥99% Ø1/2" Mounted info
WPH10E-1053 Ø1" Unmounted info
WPH10ME-1053 Ø1" Mounted info
WPH05ME-1064 1064 nm ≥98% Ø1/2" Mounted info
WPH10E-1064 Ø1" Unmounted info
WPH10ME-1064 Ø1" Mounted info
WPH20ME-1064 Ø2" Mounted info
WPH05ME-1310 1310 nm ≥98% Ø1/2" Mounted info
WPH10E-1310 Ø1" Unmounted info
WPH10ME-1310 Ø1" Mounted info
WPH20ME-1310 Ø2" Mounted info
WPH05ME-1550 1550 nm ≥98% Ø1/2" Mounted info
WPH10E-1550 Ø1" Unmounted info
WPH10ME-1550 Ø1" Mounted info
WPH20ME-1550 Ø2" Mounted info

Examples of Polymer Zero-Order Wave Plate Performance

Temperature Stability
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The stability of retardance for a WPH10E-633 zero-order half-wave plate measured over a portion of the specified temperature range.
Dispersion
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An example of the dispersion performance of the LCP zero-order half-wave plate. The green line indicates the design wavelength of the WPH10E-633 wave plate. The theoretical curve was calculated for a perfect 633 nm zero-order half-wave plate with no dispersion.
Temperature Stability
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Sample reflectance curve for Thorlabs' standard A coating, designed for <0.5% average reflectance over the 350 - 700 nm range.
Dispersion
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Sample reflectance curve for Thorlabs' standard B coating, designed for <0.5% average reflectance over the 650 - 1050 nm range.
Temperature Stability
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Sample reflectance curve for Thorlabs' standard C coating, designed for <0.5% average reflectance over the 1050 - 1700 nm range.
 

 

Sample Transmittance Plots

The plots below show the measured transmittance of four example liquid crystal polymer (LCP) wave plates. The differences in transmittance are caused by the different AR coatings, and by the different materials used to align the polymers in the LCP retarding material of the wave plate. The shaded blue region of each graph represents the specified coating range.

A Coating Transmission
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The transmittance of the WPH10E-405 wave plate. The blue shaded region indicates the wavelength range over which the AR coating provides <0.5% average reflectance. Click here to download the data.

A Coating Transmission
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The transmittance of the WPH10E-514 wave plate. This curve is representative of the performance of our -488, -514, -532, -546, -633, and -670 half-wave plates. The blue shaded region indicates the wavelength range over which the AR coating provides <0.5% average reflectance. Click here to download the data.

A Coating Transmission
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The transmittance of the WPH10E-1053 wave plate. This curve is representative of the performance of our -780, -808, -830, -980, and -1053 half-wave plates. The blue shaded region indicates the wavelength range over which the AR coating provides <0.5% average reflectance. Click here to download the data.

A Coating Transmission
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The transmittance of the WPH20ME-1064 wave plate. This curve is representative of the performance of our -1064, -1310, and -1550 half-wave plates. The blue shaded region indicates the wavelength range over which the AR coating provides <0.5% average reflectance. Click here to download the data.

Engraved Back of OAP
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Figure 1: Our highly trained engineers constructing and testing polymer wave plates.

Thorlabs offers a large variety of polymer wave plates with operating wavelengths from 405 nm to 1550 nm, diameters of 1/2" (12.7 mm) , 1" (25.4 mm) or 2" (50.8 mm), in mounted or unmounted versions. In addition, we also offer OEM and custom polymer wave plates upon request. The target wavelength, retardance, coating, mechanical housing, and dimensions can be customized to meet unique optical designs.

Our engineers work directly with our customers to discuss the specifications and other design aspects of a custom polymer wave plate. We analyze both the design and feasibility to ensure the custom products are manufactured to highest quality standards and in a timely manner. For more information about ordering a custom polymer wave plate, please contact Tech Support.

Photo-Alignment Material Coating and Alignment
Polymer Zero-Order Wave Plates utilize a liquid crystal polymer, similar to nematic liquid crystals, which requires the polymer molecules to be aligned. To accomplish this, an alignment layer is created by coating a substrate in photo-alignment material and exposing it to polarized laser light. A 20 to 30 nm layer of photo-alignment material is deposited on a glass substrate by spin coating (see Figure 2); it is then exposed to linearly polarized light, aligning the molecules in the coating to the polarization direction of the exposure light. This initial orientation can be set to any value to meet the customization requirements. Additionally, we can provide custom patterned wave plates/retarders (see the Patterned Retarders tab for more information).

Custom Retardance
The retardance of a polymer wave plate is determined by the thickness of a layer of cured liquid crystal polymer. This layer is coated on the top of the alignment material using a spin coating technique, enabling precise control of the layer’s thickness. Our stock polymer wave plates cover many of the common wavelengths; custom wavelengths between 400 to 1600 nm can be special ordered as well.

Custom Size and Mounting Options
We offer unmounted Ø1", SM1-mounted Ø1", and SM2-mounted Ø2" wave plates from stock. Our custom waveplates are available in sizes ranging from Ø0.5" to Ø2" and can be ordered either mounted or unmounted.

Testing
Each polymer wave plate is tested for birefringence, uniformity, and fast axis angle. An imaging polarimeter measures the 2-dimensional birefringence distribution across the wave plate's face. Figures 3 and 4 show testing rigs for our polymer wave plates.

Engraved Back of OAP
Click for Details

Figure 2: A glass substrate mounted on the spin coating machine ready to be coated with the photo alignment material.
Engraved Back of OAP
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Figure 3: The test setup for measuring the retardance through a polymer wave plate.
Engraved Back of OAP
Click for Details

Figure 4: The test setup for checking the retardance and alignment uniformity of our polymer wave plates.
Custom Capability Custom Specification
Patterned Retarder Size Ø100 µm to Ø2"
Patterned Retarder Shape Any
Microretarder Size ≥Ø30 µm
Microretarder Shape Round or Square
Retardance Range @ 632.8 nm 50 to 550 nm
Substrate N-BK7, UV Fused Silica, or Other Glass
Substrate Size Ø5 mm to Ø2"
AR Coating -A: 350 - 700 nm
-B: 650 - 1050 nm
-C: 1050 - 1700 nm
Liquid Crystal Retarder Smaple Switching Time
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Figure 1: Patterned Retarder with Random Distribution

Features

  • Build a Custom Microretarder
  • Customize Size, Shape, and Substrate Material
  • Retardance Range: 50 - 550 nm
  • Fast Axis Resolution: <1º
  • Retardance Fluctuations Under 30 nm

Applications

  • 3D Displays
  • Polarization Imaging
  • Diffractive Optical Applications: Polarization Gratings, Polarimetry, and Beam Steering

Thorlabs offers customizable patterned retarders, available in any pattern size from Ø100 µm to Ø2" and any substrate size from Ø5 mm to Ø2". These custom retarders are composed of an array of microretarders, each of which has a fast axis aligned to a different angle than its neighbor. The size and shape of the microretarders are also customizable. They can be as small as 30 µm and in shapes including circles and squares. This control over size and shape of the individual microretarders allows us to construct a large array of various patterned retarders to meet nearly any experimental or device need.

These patterned retarders are constructed from our liquid crystals and liquid crystal polymers. Using photo alignment technology, we can secure the fast axis of each microretarder to any angle within a resolution of <1°. Figures 1 - 3  show examples of our patterned retarders. The figures represent measured results of the patterned retarder captured on an imaging polarimeter and demonstrate that the fast axis orientation of any one individual microretarder can be controlled deterministically and separately from its neighbors.

The manufacturing process for our patterned retarders is controlled completely in house. It begins by preparing the substrate, which is typically N-BK7 or UV fused silica (although other glass substrates may be compatible as well). The substrate is then coated with a layer of photoalignment material and placed in our patterned retarder system where sections are exposed to linearly polarized light to set the fast axis of a microretarder. The area of the exposed sections depends on the desired size of the microretarder; the fast axis can be set between 0° and 180° with a resolution <1°. Once set, the liquid crystal cell is constructed by coating the device with a liquid crystal polymer and curing it with UV light.

Thorlabs' LCP depolarizers provide one example of these patterned retarders. In principle, a truly randomized pattern may be used as a depolarizer, since it scrambles the input polarization spatially. However, such a pattern will also introduce a large amount of diffraction. For our depolarizers, we designed a linearly ramping fast axis angle and retardance that can depolarize both broadband and monochromatic beams down to diameters of 0.5 mm without introducing additional diffraction. For more details, see the webpage for our LCP depolarizers.

By supplying Thorlabs with a drawing of the desired patterned retarder or an excel file of the fast axis distribution, we can construct almost any patterned retarder. For more information on creating a patterned retarder, please contact Tech Support.

Liquid Crystal Retarder Smaple Switching Time
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Figure 2: Patterned Retarder with a Spiral Distribution
Liquid Crystal Retarder Smaple Switching Time
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Figure 3: Patterned Retarder with a Pictoral Distribution
Damage Threshold Specifications
Item # Suffix Laser Type Damage Threshold
-405 CW 5 W/cm (532 nm, CW, Ø0.0107 mm)a
Pulsed (ns) 0.15 J/cm2 (532 nm, 10 ns, 10 Hz, Ø0.597 mm)
Pulsed (fs) 0.023 J/cm2 (532 nm, 100 Hz, 76 fs, Ø162 µm)
-670
CW 5 W/cm (810 nm, CW, Ø0.004 mm)a
Pulsed (ns) 1.8 J/cm2 (532 nm, 8 ns, 10 Hz, Ø0.200 mm)
Pulsed (fs) 0.041 J/cm2 (532 nm, 100 Hz, 76 fs, Ø162 µm)
-780 to 1030 CW 5 W/cm (810 nm, CW, Ø0.004 mm)a
Pulsed (ns) 8 J/cm2 (810 nm, 10 ns, 10 Hz, Ø0.08 mm)
Pulsed (fs) 0.041 J/cm2 (800 nm, 100 Hz, 36.4 fs, Ø189 µm)
-1053 to 1550 CW 5 W/cm (810 nm, CW, Ø0.004 mm)a
Pulsed (ns)  10 J/cm2 (1550 nm, 7.8 ns, 10 Hz, Ø0.191 mm)
Pulsed (fs) 0.11 J/cm2 (1550 nm, 100 Hz, 70 fs, Ø145 µm)
  • The power density of your beam should be calculated in terms of W/cm. For an explanation of why the linear power density provides the best metric for long pulse and CW sources, please see the "Continuous Wave and Long-Pulse Lasers" section below.

Damage Threshold Data for Thorlabs' LCP Wave Plates

The specifications to the right are measured data for Thorlabs' LCP wave plates. Damage threshold specifications are constant for all of the wave plates with the same design wavelength, regardless of the size of the optic.

 

Laser Induced Damage Threshold Tutorial

The following is a general overview of how laser induced damage thresholds are measured and how the values may be utilized in determining the appropriateness of an optic for a given application. When choosing optics, it is important to understand the Laser Induced Damage Threshold (LIDT) of the optics being used. The LIDT for an optic greatly depends on the type of laser you are using. Continuous wave (CW) lasers typically cause damage from thermal effects (absorption either in the coating or in the substrate). Pulsed lasers, on the other hand, often strip electrons from the lattice structure of an optic before causing thermal damage. Note that the guideline presented here assumes room temperature operation and optics in new condition (i.e., within scratch-dig spec, surface free of contamination, etc.). Because dust or other particles on the surface of an optic can cause damage at lower thresholds, we recommend keeping surfaces clean and free of debris. For more information on cleaning optics, please see our Optics Cleaning tutorial.

Testing Method

Thorlabs' LIDT testing is done in compliance with ISO/DIS 11254 and ISO 21254 specifications.

First, a low-power/energy beam is directed to the optic under test. The optic is exposed in 10 locations to this laser beam for 30 seconds (CW) or for a number of pulses (pulse repetition frequency specified). After exposure, the optic is examined by a microscope (~100X magnification) for any visible damage. The number of locations that are damaged at a particular power/energy level is recorded. Next, the power/energy is either increased or decreased and the optic is exposed at 10 new locations. This process is repeated until damage is observed. The damage threshold is then assigned to be the highest power/energy that the optic can withstand without causing damage. A histogram such as that below represents the testing of one BB1-E02 mirror.

LIDT metallic mirror
The photograph above is a protected aluminum-coated mirror after LIDT testing. In this particular test, it handled 0.43 J/cm2 (1064 nm, 10 ns pulse, 10 Hz, Ø1.000 mm) before damage.
LIDT BB1-E02
Example Test Data
Fluence # of Tested Locations Locations with Damage Locations Without Damage
1.50 J/cm2 10 0 10
1.75 J/cm2 10 0 10
2.00 J/cm2 10 0 10
2.25 J/cm2 10 1 9
3.00 J/cm2 10 1 9
5.00 J/cm2 10 9 1

According to the test, the damage threshold of the mirror was 2.00 J/cm2 (532 nm, 10 ns pulse, 10 Hz, Ø0.803 mm). Please keep in mind that these tests are performed on clean optics, as dirt and contamination can significantly lower the damage threshold of a component. While the test results are only representative of one coating run, Thorlabs specifies damage threshold values that account for coating variances.

Continuous Wave and Long-Pulse Lasers

When an optic is damaged by a continuous wave (CW) laser, it is usually due to the melting of the surface as a result of absorbing the laser's energy or damage to the optical coating (antireflection) [1]. Pulsed lasers with pulse lengths longer than 1 µs can be treated as CW lasers for LIDT discussions.

When pulse lengths are between 1 ns and 1 µs, laser-induced damage can occur either because of absorption or a dielectric breakdown (therefore, a user must check both CW and pulsed LIDT). Absorption is either due to an intrinsic property of the optic or due to surface irregularities; thus LIDT values are only valid for optics meeting or exceeding the surface quality specifications given by a manufacturer. While many optics can handle high power CW lasers, cemented (e.g., achromatic doublets) or highly absorptive (e.g., ND filters) optics tend to have lower CW damage thresholds. These lower thresholds are due to absorption or scattering in the cement or metal coating.

Linear Power Density Scaling

LIDT in linear power density vs. pulse length and spot size. For long pulses to CW, linear power density becomes a constant with spot size. This graph was obtained from [1].

Intensity Distribution

Pulsed lasers with high pulse repetition frequencies (PRF) may behave similarly to CW beams. Unfortunately, this is highly dependent on factors such as absorption and thermal diffusivity, so there is no reliable method for determining when a high PRF laser will damage an optic due to thermal effects. For beams with a high PRF both the average and peak powers must be compared to the equivalent CW power. Additionally, for highly transparent materials, there is little to no drop in the LIDT with increasing PRF.

In order to use the specified CW damage threshold of an optic, it is necessary to know the following:

  1. Wavelength of your laser
  2. Beam diameter of your beam (1/e2)
  3. Approximate intensity profile of your beam (e.g., Gaussian)
  4. Linear power density of your beam (total power divided by 1/e2 beam diameter)

Thorlabs expresses LIDT for CW lasers as a linear power density measured in W/cm. In this regime, the LIDT given as a linear power density can be applied to any beam diameter; one does not need to compute an adjusted LIDT to adjust for changes in spot size, as demonstrated by the graph to the right. Average linear power density can be calculated using the equation below. 

The calculation above assumes a uniform beam intensity profile. You must now consider hotspots in the beam or other non-uniform intensity profiles and roughly calculate a maximum power density. For reference, a Gaussian beam typically has a maximum power density that is twice that of the uniform beam (see lower right).

Now compare the maximum power density to that which is specified as the LIDT for the optic. If the optic was tested at a wavelength other than your operating wavelength, the damage threshold must be scaled appropriately. A good rule of thumb is that the damage threshold has a linear relationship with wavelength such that as you move to shorter wavelengths, the damage threshold decreases (i.e., a LIDT of 10 W/cm at 1310 nm scales to 5 W/cm at 655 nm):

CW Wavelength Scaling

While this rule of thumb provides a general trend, it is not a quantitative analysis of LIDT vs wavelength. In CW applications, for instance, damage scales more strongly with absorption in the coating and substrate, which does not necessarily scale well with wavelength. While the above procedure provides a good rule of thumb for LIDT values, please contact Tech Support if your wavelength is different from the specified LIDT wavelength. If your power density is less than the adjusted LIDT of the optic, then the optic should work for your application. 

Please note that we have a buffer built in between the specified damage thresholds online and the tests which we have done, which accommodates variation between batches. Upon request, we can provide individual test information and a testing certificate. The damage analysis will be carried out on a similar optic (customer's optic will not be damaged). Testing may result in additional costs or lead times. Contact Tech Support for more information.

Pulsed Lasers

As previously stated, pulsed lasers typically induce a different type of damage to the optic than CW lasers. Pulsed lasers often do not heat the optic enough to damage it; instead, pulsed lasers produce strong electric fields capable of inducing dielectric breakdown in the material. Unfortunately, it can be very difficult to compare the LIDT specification of an optic to your laser. There are multiple regimes in which a pulsed laser can damage an optic and this is based on the laser's pulse length. The highlighted columns in the table below outline the relevant pulse lengths for our specified LIDT values.

Pulses shorter than 10-9 s cannot be compared to our specified LIDT values with much reliability. In this ultra-short-pulse regime various mechanics, such as multiphoton-avalanche ionization, take over as the predominate damage mechanism [2]. In contrast, pulses between 10-7 s and 10-4 s may cause damage to an optic either because of dielectric breakdown or thermal effects. This means that both CW and pulsed damage thresholds must be compared to the laser beam to determine whether the optic is suitable for your application.

Pulse Duration t < 10-9 s 10-9 < t < 10-7 s 10-7 < t < 10-4 s t > 10-4 s
Damage Mechanism Avalanche Ionization Dielectric Breakdown Dielectric Breakdown or Thermal Thermal
Relevant Damage Specification No Comparison (See Above) Pulsed Pulsed and CW CW

When comparing an LIDT specified for a pulsed laser to your laser, it is essential to know the following:

Energy Density Scaling

LIDT in energy density vs. pulse length and spot size. For short pulses, energy density becomes a constant with spot size. This graph was obtained from [1].

  1. Wavelength of your laser
  2. Energy density of your beam (total energy divided by 1/e2 area)
  3. Pulse length of your laser
  4. Pulse repetition frequency (prf) of your laser
  5. Beam diameter of your laser (1/e2 )
  6. Approximate intensity profile of your beam (e.g., Gaussian)

The energy density of your beam should be calculated in terms of J/cm2. The graph to the right shows why expressing the LIDT as an energy density provides the best metric for short pulse sources. In this regime, the LIDT given as an energy density can be applied to any beam diameter; one does not need to compute an adjusted LIDT to adjust for changes in spot size. This calculation assumes a uniform beam intensity profile. You must now adjust this energy density to account for hotspots or other nonuniform intensity profiles and roughly calculate a maximum energy density. For reference a Gaussian beam typically has a maximum energy density that is twice that of the 1/e2 beam.

Now compare the maximum energy density to that which is specified as the LIDT for the optic. If the optic was tested at a wavelength other than your operating wavelength, the damage threshold must be scaled appropriately [3]. A good rule of thumb is that the damage threshold has an inverse square root relationship with wavelength such that as you move to shorter wavelengths, the damage threshold decreases (i.e., a LIDT of 1 J/cm2 at 1064 nm scales to 0.7 J/cm2 at 532 nm):

Pulse Wavelength Scaling

You now have a wavelength-adjusted energy density, which you will use in the following step.

Beam diameter is also important to know when comparing damage thresholds. While the LIDT, when expressed in units of J/cm², scales independently of spot size; large beam sizes are more likely to illuminate a larger number of defects which can lead to greater variances in the LIDT [4]. For data presented here, a <1 mm beam size was used to measure the LIDT. For beams sizes greater than 5 mm, the LIDT (J/cm2) will not scale independently of beam diameter due to the larger size beam exposing more defects.

The pulse length must now be compensated for. The longer the pulse duration, the more energy the optic can handle. For pulse widths between 1 - 100 ns, an approximation is as follows:

Pulse Length Scaling

Use this formula to calculate the Adjusted LIDT for an optic based on your pulse length. If your maximum energy density is less than this adjusted LIDT maximum energy density, then the optic should be suitable for your application. Keep in mind that this calculation is only used for pulses between 10-9 s and 10-7 s. For pulses between 10-7 s and 10-4 s, the CW LIDT must also be checked before deeming the optic appropriate for your application.

Please note that we have a buffer built in between the specified damage thresholds online and the tests which we have done, which accommodates variation between batches. Upon request, we can provide individual test information and a testing certificate. Contact Tech Support for more information.


[1] R. M. Wood, Optics and Laser Tech. 29, 517 (1998).
[2] Roger M. Wood, Laser-Induced Damage of Optical Materials (Institute of Physics Publishing, Philadelphia, PA, 2003).
[3] C. W. Carr et al., Phys. Rev. Lett. 91, 127402 (2003).
[4] N. Bloembergen, Appl. Opt. 12, 661 (1973).

In order to illustrate the process of determining whether a given laser system will damage an optic, a number of example calculations of laser induced damage threshold are given below. For assistance with performing similar calculations, we provide a spreadsheet calculator that can be downloaded by clicking the button to the right. To use the calculator, enter the specified LIDT value of the optic under consideration and the relevant parameters of your laser system in the green boxes. The spreadsheet will then calculate a linear power density for CW and pulsed systems, as well as an energy density value for pulsed systems. These values are used to calculate adjusted, scaled LIDT values for the optics based on accepted scaling laws. This calculator assumes a Gaussian beam profile, so a correction factor must be introduced for other beam shapes (uniform, etc.). The LIDT scaling laws are determined from empirical relationships; their accuracy is not guaranteed. Remember that absorption by optics or coatings can significantly reduce LIDT in some spectral regions. These LIDT values are not valid for ultrashort pulses less than one nanosecond in duration.

Intensity Distribution
A Gaussian beam profile has about twice the maximum intensity of a uniform beam profile.

CW Laser Example
Suppose that a CW laser system at 1319 nm produces a 0.5 W Gaussian beam that has a 1/e2 diameter of 10 mm. A naive calculation of the average linear power density of this beam would yield a value of 0.5 W/cm, given by the total power divided by the beam diameter:

CW Wavelength Scaling

However, the maximum power density of a Gaussian beam is about twice the maximum power density of a uniform beam, as shown in the graph to the right. Therefore, a more accurate determination of the maximum linear power density of the system is 1 W/cm.

An AC127-030-C achromatic doublet lens has a specified CW LIDT of 350 W/cm, as tested at 1550 nm. CW damage threshold values typically scale directly with the wavelength of the laser source, so this yields an adjusted LIDT value:

CW Wavelength Scaling

The adjusted LIDT value of 350 W/cm x (1319 nm / 1550 nm) = 298 W/cm is significantly higher than the calculated maximum linear power density of the laser system, so it would be safe to use this doublet lens for this application.

Pulsed Nanosecond Laser Example: Scaling for Different Pulse Durations
Suppose that a pulsed Nd:YAG laser system is frequency tripled to produce a 10 Hz output, consisting of 2 ns output pulses at 355 nm, each with 1 J of energy, in a Gaussian beam with a 1.9 cm beam diameter (1/e2). The average energy density of each pulse is found by dividing the pulse energy by the beam area:

Pulse Energy Density

As described above, the maximum energy density of a Gaussian beam is about twice the average energy density. So, the maximum energy density of this beam is ~0.7 J/cm2.

The energy density of the beam can be compared to the LIDT values of 1 J/cm2 and 3.5 J/cm2 for a BB1-E01 broadband dielectric mirror and an NB1-K08 Nd:YAG laser line mirror, respectively. Both of these LIDT values, while measured at 355 nm, were determined with a 10 ns pulsed laser at 10 Hz. Therefore, an adjustment must be applied for the shorter pulse duration of the system under consideration. As described on the previous tab, LIDT values in the nanosecond pulse regime scale with the square root of the laser pulse duration:

Pulse Length Scaling

This adjustment factor results in LIDT values of 0.45 J/cm2 for the BB1-E01 broadband mirror and 1.6 J/cm2 for the Nd:YAG laser line mirror, which are to be compared with the 0.7 J/cm2 maximum energy density of the beam. While the broadband mirror would likely be damaged by the laser, the more specialized laser line mirror is appropriate for use with this system.

Pulsed Nanosecond Laser Example: Scaling for Different Wavelengths
Suppose that a pulsed laser system emits 10 ns pulses at 2.5 Hz, each with 100 mJ of energy at 1064 nm in a 16 mm diameter beam (1/e2) that must be attenuated with a neutral density filter. For a Gaussian output, these specifications result in a maximum energy density of 0.1 J/cm2. The damage threshold of an NDUV10A Ø25 mm, OD 1.0, reflective neutral density filter is 0.05 J/cm2 for 10 ns pulses at 355 nm, while the damage threshold of the similar NE10A absorptive filter is 10 J/cm2 for 10 ns pulses at 532 nm. As described on the previous tab, the LIDT value of an optic scales with the square root of the wavelength in the nanosecond pulse regime:

Pulse Wavelength Scaling

This scaling gives adjusted LIDT values of 0.08 J/cm2 for the reflective filter and 14 J/cm2 for the absorptive filter. In this case, the absorptive filter is the best choice in order to avoid optical damage.

Pulsed Microsecond Laser Example
Consider a laser system that produces 1 µs pulses, each containing 150 µJ of energy at a repetition rate of 50 kHz, resulting in a relatively high duty cycle of 5%. This system falls somewhere between the regimes of CW and pulsed laser induced damage, and could potentially damage an optic by mechanisms associated with either regime. As a result, both CW and pulsed LIDT values must be compared to the properties of the laser system to ensure safe operation.

If this relatively long-pulse laser emits a Gaussian 12.7 mm diameter beam (1/e2) at 980 nm, then the resulting output has a linear power density of 5.9 W/cm and an energy density of 1.2 x 10-4 J/cm2 per pulse. This can be compared to the LIDT values for a WPQ10E-980 polymer zero-order quarter-wave plate, which are 5 W/cm for CW radiation at 810 nm and 5 J/cm2 for a 10 ns pulse at 810 nm. As before, the CW LIDT of the optic scales linearly with the laser wavelength, resulting in an adjusted CW value of 6 W/cm at 980 nm. On the other hand, the pulsed LIDT scales with the square root of the laser wavelength and the square root of the pulse duration, resulting in an adjusted value of 55 J/cm2 for a 1 µs pulse at 980 nm. The pulsed LIDT of the optic is significantly greater than the energy density of the laser pulse, so individual pulses will not damage the wave plate. However, the large average linear power density of the laser system may cause thermal damage to the optic, much like a high-power CW beam.


Posted Comments:
s.o.m.hinterding  (posted 2018-06-06 14:41:00.697)
Dear sir/madam, In order to convert our laser beam from linearly polarized into circularly polarized, we are looking to use WPH05ME-514. We would have to mount this in a rotational mount for correct alignment to the laser beam polarization axis. For this mount we would like to use RSP1D/M (cont. rotation mount for 1 inch optics w/adjustable zero), since this mount would also be useful for other setups, if we later want to do other experiments. However, WPH05ME-514 will not fit in this 1 inch mount. An option would be to buy the unmounted 1 inch version of this wave plate, but I prefer to buy a mounted version (I am afraid to damage/stress the wave plate when placing inside the mount). In any case, a mounted (1 or 0.5 inch) version will not fit inside the RSP1D/M, since this mount is made for 1 inch optics. Is there some sort of adapter that allows mounting of the WPH05ME-514 wave plate inside the RSP1D/M mount?
YLohia  (posted 2018-06-14 09:21:41.0)
Hello, thank you for contacting Thorlabs. One thing to note is that the part you have currently picked out (WPH05ME-514) is a half-wave plate. In order to circularize a linearly polarized beam, you need to use a quarter-wave plate such as the WPQ05ME-514. That being said, you will need to use the SM1A6 adapter to mate this wave plate to the RSP1D/M.
mikkel.brydegaard  (posted 2018-01-26 09:34:47.897)
Hej, Two things: 1) Why can we have WPH05ME-808 unmounted? IT does not fit inside the SRM05... 2) We use a lot of ½wave plates, always in combination with a polarizing cube beam splitter. I guess other people also use it with pol BS and/or interrogators. So, for the other BS branch, we need a compensation slab of glass to make the optical paths equivalent. So the waveplates should have a matching compensation slab: a coated glass window with the same thickness and refractive index as the waveplates... I can send you a CAD if you want to see what we are doing...
tfrisch  (posted 2018-01-26 01:16:55.0)
Hello, thank you for contacting Thorlabs. We can offer the unmounted version of WPH05ME-808. I will reach out to you with a quote. As for the compensating plate, we can make windows for this purpose, though our Optics Team will need to see the drawing in order to provide pricing and lead time. I will also reach out to you about the CAD drawing and the specific requirements.
danielve.tau  (posted 2014-11-17 14:24:36.333)
Dear Sirs, I wanted to know if you could provide retardance curves for the 633, 546 and 532 nm for wavelengths ranging from 400-700 nm or more. Thanks.
myanakas  (posted 2014-12-02 09:15:15.0)
Response from Mike at Thorlabs: Thank you for your feedback. I have emailed this retardance data to you directly. We will update the website to have this data as well.
user  (posted 2014-01-15 11:33:57.22)
any updates on damage threshold? without it the description is useless thanks
besembeson  (posted 2014-03-06 04:03:47.0)
Response from Jeremy at Thorlabs: We are still waiting on the test results for these. We will update the web once this is available. UPDATE: We now have the damage thresholds on our website: http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=7054
blanc  (posted 2013-11-27 18:01:57.147)
Hello, I would like to know what is the damage threshold for those polymer waveplates. thanks in advance Best
jlow  (posted 2013-12-06 04:08:53.0)
Response from Jeremy at Thorlabs: We are testing these polymer wave plates for their damage threshold. We will update the web once we have this information available.

Choosing a Wave Plate

Thorlabs offers achromatic, superachromatic, zero-order (both unmounted wave plates and mounted wave plates), low-order, and multi-order wave plates (single wavelength and dual wavelength) with either λ/4 or λ/2 phase shift.

Achromatic Wave Plates provide phase retardance that is relatively independent of wavelength over a wide spectral range, and Superachromatic Wave Plates provide phase retardance almost entirely independent of wavelength over a much wider range than achromatic wave plates. In contrast, zero-order and multi-order wave plates provide a phase shift that is strongly wavelength dependent. Our achromatic wave plates are available with four operating ranges: 260 - 410 nm, 350 - 850 nm, 400 - 800 nm, 690 - 1200 nm, and 1100 - 2000 nm. Additionally, we offer superachromatic wave plates for the 310 - 1100 nm and 600 - 2700 nm ranges.

Round Zero-Order Wave Plate Comparison
Material Quartz LCP
Sizes Ø1/2" and Ø1" Ø1/2", Ø1", and Ø2"
Mounted Versions Available Yes Yes
Retardances Available 1/4 λ and 1/2 λ 1/4 λ and 1/2 λ
Retardance Accuracy <λ/300 <λ/100
Surface Quality 20-10 Scratch-Dig 60-40 Scratch-Dig
Coating V Coat Broadband AR
Coating Reflectance
(per Surface)
0.25% 0.5% Average Over Specified Coating Range

Zero-order wave plates are designed such that the phase shift created is exactly one quarter or one half of a wave. They offer substantially lower dependence on temperature and wavelength than multi-order wave plates. Our Zero-Order Quartz Half-Wave and Quarter-Wave Plates are composed of two wave plates stacked together with the fast axis of one aligned to the slow axis of the other to achieve zero-order performance. Thorlabs' zero-order wave plates are available for a number of discrete wavelengths ranging from 266 nm to 2020 nm. Our Polymer Zero-Order Half-Wave and Quarter-Wave Plates consist of a thin layer of liquid crystal polymer retarding material sandwiched between two glass plates and are available at discrete wavelengths between 405 nm and 1550 nm. Our quartz zero-order wave plates provide better retardance accuracy and lower reflectance (see table), while our LCP zero-order wave plates produce a smaller decrease in retardance at larger AOIs. In addition, Thorlabs also offers unmounted true Zero-Order Telecom Wave Plates for WDM applications.

MIR Wave Plates are made from a single piece of high-quality magnesium fluoride and provide either quarter-wave or half-wave retardance at 2.5 µm, 3.5 µm, 4.0 µm, 4.5 µm, or 5.3 µm. Light passing through these MIR wave plates will undergo a low number of full or partial wavelength shifts (also referred to as the order, or m) in addition to the fractional design retardance. This differs from true zero-order and multi-order wave plates which undergo no shift or a high number of shifts, respectively. The low-order design maintains near to true zero-order performance, making it a good alternative to true zero-order wave plates. The single magnesium fluoride substrate is also thinner compared to a zero-order design, which combines two multi-order wave plates, making our low-order retarders well suited for applications that are sensitive to dispersion.

Multi-Order Wave Plates are made such that the retardance of a light path will undergo a certain number of full wavelength shifts (also referred to as the order, or m) in addition to the fractional design retardance. Compared to their zero-order counterparts, the retardance of multi-order wave plates is more sensitive to wavelength and temperature changes. Multi-order wave plates are, however, a more economical solution for many applications where increased sensitivities are not an issue. Our multi-order wave plates are available for a number of discrete wavelengths ranging from 266 nm to 1550 nm. Thorlabs also offers Dual-Wavelength Multi-Order Wave Plates designed for use at both 532 nm and 1064 nm.

In addition to these options, Thorlabs also has the ability to design and manufacture custom wave plates for both OEM sales and individual low quantity orders. Our technical staff is able to help with all phases of your request: quoting, sales, and planning and manufacturing support. If you have a custom request or a question about our capabilities, please contact Tech Support to start a discussion.

Mounted Ø1/2" Polymer True Zero-Order Half-Wave Plates

Half-Wave Plate
Half-wave plates can rotate the polarization plane of linearly polarized light.

Click on More Info Icon for sample retardance and reflectance plots and downloadable data.

Item # Specifications
WPH05ME-405 info
WPH05ME-445 info
WPH05ME-488 info
WPH05ME-514 info
WPH05ME-532 info
WPH05ME-546 info
WPH05ME-588 info
WPH05ME-633 info
WPH05ME-670 info
WPH05ME-780 info
Item # Specifications
WPH05ME-808 info
WPH05ME-830 info
WPH05ME-850 info
WPH05ME-980 info
WPH05ME-1030 info
WPH05ME-1053 info
WPH05ME-1064 info
WPH05ME-1310 info
WPH05ME-1550 info
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WPH05ME-405 Support Documentation
WPH05ME-405Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 405 nm
$265.23
Today
WPH05ME-445 Support Documentation
WPH05ME-445Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 445 nm
$265.23
Today
WPH05ME-488 Support Documentation
WPH05ME-488Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 488 nm
$265.23
Today
WPH05ME-514 Support Documentation
WPH05ME-514Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 514 nm
$265.23
Today
WPH05ME-532 Support Documentation
WPH05ME-532Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 532 nm
$265.23
Today
WPH05ME-546 Support Documentation
WPH05ME-546Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 546 nm
$265.23
Today
WPH05ME-588 Support Documentation
WPH05ME-588Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 588 nm
$265.23
Today
WPH05ME-633 Support Documentation
WPH05ME-633Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 633 nm
$265.23
Today
WPH05ME-670 Support Documentation
WPH05ME-670Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 670 nm
$265.23
Lead Time
WPH05ME-780 Support Documentation
WPH05ME-780Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 780 nm
$265.23
Today
WPH05ME-808 Support Documentation
WPH05ME-808Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 808 nm
$265.23
Today
WPH05ME-830 Support Documentation
WPH05ME-830Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 830 nm
$265.23
Today
WPH05ME-850 Support Documentation
WPH05ME-850Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 850 nm
$265.23
Today
WPH05ME-980 Support Documentation
WPH05ME-980Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 980 nm
$265.23
Today
WPH05ME-1030 Support Documentation
WPH05ME-1030Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 1030 nm
$265.23
Today
WPH05ME-1053 Support Documentation
WPH05ME-1053Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 1053 nm
$265.23
5-8 Days
WPH05ME-1064 Support Documentation
WPH05ME-1064Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 1064 nm
$265.23
Today
WPH05ME-1310 Support Documentation
WPH05ME-1310Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 1310 nm
$265.23
Today
WPH05ME-1550 Support Documentation
WPH05ME-1550Ø1/2" Mounted Polymer Zero-Order Half-Wave Plate, SM05-Threaded Mount, 1550 nm
$265.23
Today

Ø1" Polymer True Zero-Order Half-Wave Plates

Half-Wave Plate
Half-wave plates can rotate the polarization plane of linearly polarized light.

Click on More Info Icon for sample retardance and reflectance plots and downloadable data.

Item #Specifications
WPH10E-405 info
WPH10E-488 info
WPH10E-514 info
WPH10E-532 info
WPH10E-546 info
WPH10E-633 info
WPH10E-670 info
WPH10E-780 info
Item #Specifications
WPH10E-808 info
WPH10E-830 info
WPH10E-980 info
WPH10E-1053 info
WPH10E-1064 info
WPH10E-1310 info
WPH10E-1550 info
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WPH10E-405 Support Documentation
WPH10E-405Ø1" Polymer Zero-Order Half-Wave Plate, 405 nm
$293.25
Today
WPH10E-488 Support Documentation
WPH10E-488Ø1" Polymer Zero-Order Half-Wave Plate, 488 nm
$293.25
Today
WPH10E-514 Support Documentation
WPH10E-514Ø1" Polymer Zero-Order Half-Wave Plate, 514 nm
$293.25
Today
WPH10E-532 Support Documentation
WPH10E-532Ø1" Polymer Zero-Order Half-Wave Plate, 532 nm
$293.25
Today
WPH10E-546 Support Documentation
WPH10E-546Ø1" Polymer Zero-Order Half-Wave Plate, 546 nm
$293.25
Today
WPH10E-633 Support Documentation
WPH10E-633Ø1" Polymer Zero-Order Half-Wave Plate, 633 nm
$293.25
Today
WPH10E-670 Support Documentation
WPH10E-670Ø1" Polymer Zero-Order Half-Wave Plate, 670 nm
$293.25
Today
WPH10E-780 Support Documentation
WPH10E-780Ø1" Polymer Zero-Order Half-Wave Plate, 780 nm
$293.25
Today
WPH10E-808 Support Documentation
WPH10E-808Ø1" Polymer Zero-Order Half-Wave Plate, 808 nm
$293.25
Today
WPH10E-830 Support Documentation
WPH10E-830Ø1" Polymer Zero-Order Half-Wave Plate, 830 nm
$293.25
Today
WPH10E-980 Support Documentation
WPH10E-980Ø1" Polymer Zero-Order Half-Wave Plate, 980 nm
$293.25
Today
WPH10E-1053 Support Documentation
WPH10E-1053Ø1" Polymer Zero-Order Half-Wave Plate, 1053 nm
$293.25
Today
WPH10E-1064 Support Documentation
WPH10E-1064Ø1" Polymer Zero-Order Half-Wave Plate, 1064 nm
$293.25
Today
WPH10E-1310 Support Documentation
WPH10E-1310Ø1" Polymer Zero-Order Half-Wave Plate, 1310 nm
$293.25
Today
WPH10E-1550 Support Documentation
WPH10E-1550Ø1" Polymer Zero-Order Half-Wave Plate, 1550 nm
$293.25
5-8 Days

Mounted Ø1" Polymer True Zero-Order Half-Wave Plates

Half-Wave Plate
Half-wave plates can rotate the polarization plane of linearly polarized light.

Click on More Info Icon for sample retardance and reflectance plots and downloadable data.

Item #Specifications
WPH10ME-405 info
WPH10ME-488 info
WPH10ME-514 info
WPH10ME-532 info
WPH10ME-546 info
WPH10ME-633 info
WPH10ME-670 info
WPH10ME-780 info
Item #Specifications
WPH10ME-808 info
WPH10ME-830 info
WPH10ME-980 info
WPH10ME-1053 info
WPH10ME-1064 info
WPH10ME-1310 info
WPH10ME-1550 info

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WPH10ME-405 Support Documentation
WPH10ME-405Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 405 nm
$325.72
Today
WPH10ME-488 Support Documentation
WPH10ME-488Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 488 nm
$325.72
Today
WPH10ME-514 Support Documentation
WPH10ME-514Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 514 nm
$325.72
Today
WPH10ME-532 Support Documentation
WPH10ME-532Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 532 nm
$325.72
Today
WPH10ME-546 Support Documentation
WPH10ME-546Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 546 nm
$325.72
Today
WPH10ME-633 Support Documentation
WPH10ME-633Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 633 nm
$325.72
Today
WPH10ME-670 Support Documentation
WPH10ME-670Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 670 nm
$325.72
Today
WPH10ME-780 Support Documentation
WPH10ME-780Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 780 nm
$325.72
Today
WPH10ME-808 Support Documentation
WPH10ME-808Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 808 nm
$325.72
Today
WPH10ME-830 Support Documentation
WPH10ME-830Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 830 nm
$325.72
Today
WPH10ME-980 Support Documentation
WPH10ME-980Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 980 nm
$325.72
Today
WPH10ME-1053 Support Documentation
WPH10ME-1053Customer Inspired! Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 1053 nm
$325.72
Today
WPH10ME-1064 Support Documentation
WPH10ME-1064Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 1064 nm
$325.72
Today
WPH10ME-1310 Support Documentation
WPH10ME-1310Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 1310 nm
$325.72
Today
WPH10ME-1550 Support Documentation
WPH10ME-1550Ø1" Mounted Polymer Zero-Order Half-Wave Plate, SM1-Threaded Mount, 1550 nm
$325.72
Today

Mounted Ø2" Polymer True Zero-Order Half-Wave Plates

Half-Wave Plate
Half-wave plates can rotate the polarization plane of linearly polarized light.

Click on More Info Icon for sample retardance and reflectance plots and downloadable data.

Item #Specifications
WPH20ME-405 info
WPH20ME-488 info
WPH20ME-514 info
WPH20ME-532 info
WPH20ME-546 info
WPH20ME-633 info
WPH20ME-780 info
Item #Specifications
WPH20ME-808 info
WPH20ME-830 info
WPH20ME-980 info
WPH20ME-1064 info
WPH20ME-1310 info
WPH20ME-1550 info
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WPH20ME-405 Support Documentation
WPH20ME-405Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 405 nm
$469.64
Today
WPH20ME-488 Support Documentation
WPH20ME-488Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 488 nm
$469.64
Today
WPH20ME-514 Support Documentation
WPH20ME-514Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 514 nm
$469.64
Today
WPH20ME-532 Support Documentation
WPH20ME-532Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 532 nm
$469.64
Today
WPH20ME-546 Support Documentation
WPH20ME-546Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 546 nm
$469.64
Today
WPH20ME-633 Support Documentation
WPH20ME-633Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 633 nm
$469.64
Today
WPH20ME-780 Support Documentation
WPH20ME-780Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 780 nm
$469.64
Today
WPH20ME-808 Support Documentation
WPH20ME-808Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 808 nm
$469.64
Today
WPH20ME-830 Support Documentation
WPH20ME-830Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 830 nm
$469.64
Today
WPH20ME-980 Support Documentation
WPH20ME-980Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 980 nm
$469.64
Today
WPH20ME-1064 Support Documentation
WPH20ME-1064Customer Inspired! Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 1064 nm
$469.64
Today
WPH20ME-1310 Support Documentation
WPH20ME-1310Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 1310 nm
$469.64
Today
WPH20ME-1550 Support Documentation
WPH20ME-1550Ø2" Mounted Polymer Zero-Order Half-Wave Plate, SM2-Threaded Mount, 1550 nm
$469.64
Today
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