Create an Account  |   Log In

View All »Matching Part Numbers


Your Shopping Cart is Empty
         

Metallic Zerodur® Mirrors


  • Lower Coefficient of Thermal Expansion Than Fused Silica
  • Broadband, High-Reflectance Aluminum, Silver, and Gold Coatings
  • Ø1/2", Ø1", and Ø2" Optics

PF1011-M01

Ø1" Protected Gold

PF2011-F01

Ø2" UV Enhanced Aluminum

PF1011-G01

Ø1" Protected Aluminum

PF2011-M03

Ø2" Unprotected Gold

PF0511-M01

Ø1/2" Protected Gold

PF0511-M03

Ø1/2" Unprotected Gold

PF1011-P01

Ø1" Protected Silver

PF0511-P01

Ø1/2" Protected Silver

Related Items


Please Wait
Quick Links
Reflectance Mirrors
>90% for 250 - 450 nm UV Enhanced Aluminum Mirrors
>90% for 450 nm - 2 µm
>95% for 2 - 20 µm
Protected Aluminum Mirrors
>97.5% for 450 nm - 2 µm
>96% for 2 - 20 µm
Protected Silver Mirrors
>96% for 800 nm - 20 µm Protected Gold Mirrors
Unprotected Gold Mirrors

Features

  • Extremely Low Coefficient of Thermal Expansion
  • High-Reflectance Metallic Coatings (See Table to the Right)
  • Aluminum, Silver, and Protected Gold Mirrors with Protective Overcoat
  • Unprotected Gold Mirrors for Polarization-Sensitive and Ultrafast Applications
  • Available in Ø1/2", Ø1", and Ø2" Sizes

Zerodur® mirrors offer an extremely low coefficient of thermal expansion of 0 ± 0.100 x 10-6 /°C, which is significantly smaller than the value for fused silica, 0.55 x 10-6 /°C. This property makes these mirrors ideal for high-power systems like CO2 lasers, amplified Ti:sapphire lasers, and industrial machining lasers, as well as other applications that are sensitive to thermally-induced beam drift. These Zerodur mirrors are offered with UV enhanced aluminum, protected aluminum, protected silver, protected gold, and unprotected gold coatings. Like other mirrors with metallic coatings, these mirrors offer a high reflectance over a broadband range and are relatively insensitive to angle of incidence. 

The protected gold, silver, and aluminum mirrors have a durable SiO2 overcoat, and the UV-enhanced aluminum mirrors feature >90% reflectance in the 250 - 450 nm range. Each protective overcoat helps to protect the metallic coating from tarnishing and prevents damage to the fragile metallic surface. By contrast, unprotected gold offers higher reflectance than protected gold but is more delicate. The overcoat of the protected mirrors results in polarization changes that can be difficult to quantify and sometimes induces absorption in the mid- to far-IR. The unprotected mirrors are ideal for applications where the polarization state needs to be strictly maintained or dispersion in the overcoat of the protected mirrors must be avoided. Please see the Graphs tab above for reflectance curves for each coating.

For applications which require higher reflectance over a smaller wavelength range and limited thermal expansion, Thorlabs offers a line of Zerodur broadband dielectric mirrors. For applications in which thermal expansion is not a concern, we also offer a line of standard plano metallic mirrors. In addition, fused silica broadband dielectric and other mirrors suitable for a wide variety of applications are available.


Click to Enlarge
Mirrors Ø1/2" and larger are
laser engraved with their part
number for easy identification.
Metal-Coated Plano Mirrors Selection Guide

Wavelength Range

Avg. Reflectance
(Click for Variation)

Coating

Suffix

Coating Comparison

250 nm - 450 nm >90% UV Enhanced Aluminum -F01 icon
Raw Data
450 nm - 20 μm >90% for 450 nm - 2 µm
>95% for 2 - 20 µm
Protected Aluminum -G01
750 nm - 1 µm Rs > 99.0%
RP > 98.5%
Ultrafast-Enhanced Silver -AG icon
Raw Data
450 nm - 20 μm >97.5% for 450 nm - 2 µm
>96% for 2 - 20 µm
Protected Silver -P01
>97% for 450 nm - 2 µm
>95% for 2 - 20 µm
Protected Silvera -P02
800 nm - 20 μm >96% Protected Gold -M01 icon
Raw Data
2 µm - 20 µm >98% MIR Enhanced Gold -M02
800 nm - 20 μm >97% Unprotected Gold -M03
10.6 µm Laser Line >99% Unprotected Gold -L01
Metal-Coated Zerodur® Mirrors
Economy Front Surface Mirrors with Protected Metallic Coatings
  • This variation of our protected silver coating is only found on the PFR14-P02 Rectangular Mirror.
Optical Coatings Guide
Optic Cleaning Tutorial

Metallic Mirror Specifications

 Common Mirror Specifications
Item # Prefix PF0511 PF1011 PF2011
Diameter Ø1/2" Ø1" Ø2"
Diameter Tolerance  +0.0/-0.1 mm
Clear Aperture >90% of Diameter
Thickness 6 mm 12 mm
Thickness Tolerance ±0.2 mm
Substratea Zerodur®
Parallelism ≤3 arcmin
Front Surface Flatness (Peak to Valley)  λ/10 @ 632.8 nm
Surface Quality  40-20 Scratch-Dig
  • Click Link for Detailed Specifications on the Substrate

Coating Specifications
Coating Type UV Enhanced Aluminum Protected Aluminum Protected Silver Protected Gold Unprotected Gold
Item # Suffix -F01 -G01 -P01 -M01 -M03
Reflectance Ravg >90% for 250 - 450 nm Ravg > 90% for 450 nm - 2 μm
Ravg > 95% for 2 μm - 20 μm
Ravg > 97.5% for 450 nm - 2 µm
Ravg > 96% for 2 - 20 µm
Ravg > 96% for 800 nm -
20 μm
Ravg >97% for 800 nm - 20 μm

The shaded regions in the graphs denote the ranges over which we guarantee the specified reflectance. Please note that the reflectance outside of these bands is typical and can vary from lot to lot, especially in out-of-band regions where the reflectance is fluctuating or sloped.

UV-Enhanced Aluminum Coating (250 nm - 450 nm)

Enhanced Aluminum at Near-Normal Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for UV-Enhanced Aluminum
Enhanced Aluminum at 45 Degree Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for UV-Enhanced Aluminum

 

Protected Aluminum Coating (450 nm - 20 µm)

Protected Aluminum at Near-Normal Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for Protected Aluminum
Protected Aluminum at 45 Degree Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for Protected Aluminum

 

Protected Silver Coating (450 nm - 20 µm)

Protected Silver at Near-Normal Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for Protected Silver
Protected Silver at 45 Degree Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for Protected Silver

 

Protected Gold Coating (800 nm - 20 µm)

Protected Gold at Near-Normal Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for -M01 Protected Gold Coating
Protected Gold at 45 Degree Incident Angle
Click to Enlarge

Excel Spreadsheet with Raw Data for -M01 Protected Gold Coating

 

Unprotected Gold Coating (800 nm - 20 µm)

Unprotected Gold -M03
Click to Enlarge

Excel Spreadsheet with Raw Data for -M03 Unprotected Gold Coating

Posted Comments:
No Comments Posted

UV-Enhanced Aluminum Zerodur Mirrors (250 nm - 450 nm)

UV Aluminum Reflectivity at 45 Degrees
Click to Enlarge

Click Here for Raw Data

Our UV-Enhanced Aluminum mirrors are a cost effective solution for UV applications. Because bare aluminum is extremely delicate and susceptible to damage, a protective overcoat is layered over the aluminum to prolong the life of the mirror. Our UV-enhanced coating allows >90% reflectance in the 250 - 450 nm range.

The plot to the right shows the measured reflectance of UV-enhanced aluminum as a function of wavelength. The shaded region denotes the 250 - 450 nm range. Data was obtained at a 45° angle of incidence. See the Graphs tab for more data.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PF0511-F01 Support Documentation
PF0511-F01Ø1/2" (12.7 mm) Zerodur® UV-Enhanced Aluminum Mirror
$80.37
Today
PF1011-F01 Support Documentation
PF1011-F01Ø1" (25.4 mm) Zerodur® UV-Enhanced Aluminum Mirror
$107.16
Today
PF2011-F01 Support Documentation
PF2011-F01Ø2" (50.8 mm) Zerodur® UV-Enhanced Aluminum Mirror
$198.56
Today

Protected Aluminum Zerodur Mirrors (450 nm - 20 µm)

UV Aluminum Reflectivity at 45 Degrees
Click to Enlarge

Click Here for Raw Data

Protected Aluminum coated mirrors are a good option for many general broadband applications. A SiO2 protective overcoat is used to protect the delicate aluminum coating, making it suitable for laboratory and industrial use. The protected aluminum coating has a smaller chance of tarnishing than protected silver in a high humidity environment and gives a reflectance that most closely matches the reflectance of a bare aluminum coating. These mirrors have an average reflectance greater than 90% from 450 nm to 2 µm and greater than 95% over the 2 to 20 µm spectral range. 

The plot to the right shows the measured reflectance of protected aluminum as a function of wavelength. The shaded region denotes the region over which we recommend using these optics. See the Graphs tab for more data. 

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PF0511-G01 Support Documentation
PF0511-G01Ø1/2" (12.7 mm) Zerodur® Protected Aluminum Mirror
$80.37
Today
PF1011-G01 Support Documentation
PF1011-G01Ø1" (25.4 mm) Zerodur® Protected Aluminum Mirror
$107.16
Today
PF2011-G01 Support Documentation
PF2011-G01Ø2" (50.8 mm) Zerodur® Protected Aluminum Mirror
$198.56
Today

Protected Silver Zerodur Mirrors (450 nm - 20 µm)

Gold Reflectivity at 45 Degrees
Click to Enlarge

Click Here for Raw Data

Silver coated mirrors offer the highest reflectance in the visible-to-NIR spectrum of any metallic mirror, while also offering high reflectance in the IR. From 450 nm - 2 µm, our silver-coated mirrors have an average reflectance of >97.5%, and from 2 µm to 20 µm, they have an average reflectance of >96%. In order to protect them from oxidation, these mirrors have a durable SiO2 overcoat. Due to their high reflectance over the 450 nm - 20 µm range, these mirrors are well suited for use with femtosecond pulsed lasers. 

The plot to the right shows the measured reflectance of protected silver as a function of wavelength. The shaded region denotes the range over which we recommend using these optics. See the Graphs tab for more data.

Care and Handling
Silver coated mirrors require additional care due to their susceptibility to damage from environmental conditions and improper handling. Fingerprints, contact with abrasive surfaces, and environments with high humidity or temperature will diminish the effectiveness of the protective overcoat leaving the silver coating susceptible to oxidation and degradation. When working with silver mirrors, follow standard practices for handling optics. Latex gloves or similar protective coverings are recommended to prevent oil and other residues on the user’s fingers from reaching the optical surface. Even with such precautions, care should be taken not to touch the mirrored face or edges. Silver mirrors should be used and stored in areas at room temperature with minimal humidity. For information on how to clean mirrors and other optics, visit our Optic Cleaning Tutorial.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PF0511-P01 Support Documentation
PF0511-P01Ø1/2" (12.7 mm) Zerodur® Protected Silver Mirror
$80.37
Today
PF1011-P01 Support Documentation
PF1011-P01Ø1" (25.4 mm) Zerodur® Protected Silver Mirror
$107.16
Today
PF2011-P01 Support Documentation
PF2011-P01Ø2" (50.8 mm) Zerodur® Protected Silver Mirror
$198.56
Today

Protected Gold Zerodur Mirrors (800 nm - 20 µm)

Gold Reflectivity at 45 Degrees
Click to Enlarge

Click Here for Raw Data

Protected gold coatings are ideal for use over the entire IR range, with an average reflectance in excess of 96% for 800 nm - 20 µm. A protective SiO2 overcoat is layered over the gold to make it damage resistant and easy to clean.

The plot to the right shows the measured reflectance of protected gold as a function of wavelength. The shaded region denotes the range over which we recommend using these optics. See the Graphs tab for more data.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PF0511-M01 Support Documentation
PF0511-M01Ø1/2" (12.7 mm) Zerodur® Protected Gold Mirror
$80.37
Today
PF1011-M01 Support Documentation
PF1011-M01Ø1" (25.4 mm) Zerodur® Protected Gold Mirror
$107.16
Today
PF2011-M01 Support Documentation
PF2011-M01Ø2" (50.8 mm) Zerodur® Protected Gold Mirror
$198.56
Today

Unprotected Gold Zerodur Mirrors (800 nm - 20 µm)

Unprotected Gold -M03
Click to Enlarge

Click Here for Raw Data

Unprotected gold offers higher reflectance than protected gold, but is more delicate. Additionally, these mirrors can be used in applications where the polarization state needs to be strictly maintained or to prevent dispersion due to the overcoat of protected gold mirrors. The overcoat of protected gold mirrors results in polarization changes that can be difficult to quantify and sometimes induces absorption in the mid-to-far IR.

The plot to the right shows the measured reflectance of protected gold as a function of wavelength. The shaded region denotes the range over which we recommend using these optics. See the Graphs tab for more data.

NOTE: Mounts that utilize retaining rings are likely to damage the surface of these mirrors. Bare gold does not oxidize in air, but it can be easily damaged by fingerprints, aerosols, or the slightest contact with any abrasive material. Unprotected gold mirrors should only be handled when necessary and always held by the sides. Latex gloves or a similar protective covering should be worn to prevent oil from fingers from reaching the surface. No attempt should be made to clean the surface other than blowing off dust with clean, dry air or nitrogen. Any other cleaning method may damage the surface.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PF0511-M03 Support Documentation
PF0511-M03Ø1/2" (12.7 mm) Zerodur® Unprotected Gold Mirror
$80.37
Today
PF1011-M03 Support Documentation
PF1011-M03Ø1" (25.4 mm) Zerodur® Unprotected Gold Mirror
$107.16
Today
PF2011-M03 Support Documentation
PF2011-M03Ø2" (50.8 mm) Zerodur® Unprotected Gold Mirror
$198.56
Today
Log In  |   My Account  |   Contact Us  |   Careers  |   Privacy Policy  |   Home  |   FAQ  |   Site Index
Regional Websites: West Coast US | Europe | Asia | China | Japan
Copyright 1999-2019 Thorlabs, Inc.
Sales: 1-973-300-3000
Technical Support: 1-973-300-3000


High Quality Thorlabs Logo 1000px:Save this Image