Create an Account  |   Log In

View All »Matching Part Numbers


Your Shopping Cart is Empty
         

Leg-Coated Right Angle Prism Mirrors


  • Broadband Dielectric Coatings Available
    for 400 - 750 nm or 750 - 1100 nm
  • Leg Dimensions from 5.0 mm to 25.0 mm

MRA25L-E02

(L = 25.0 mm)

MRA20L-E03

(L = 20.0 mm)

MRA10L-E03

(L = 10.0 mm)

MRA05L-E02

(L = 5.0 mm)

Application Idea

The MRA25L-E02 prism mirror used with a hollow roof prism mirror to create an optical delay line.

Related Items


Please Wait
Optical Coatings and Substrates
Optic Cleaning Tutorial
Right Angle Prism Mirror Selection Guide
Hypotenuse Coated
Metallic Coatings (250 nm - 20 µm)
Dielectric Coatings (400 nm - 1100 nm)
Laser Line (532 nm and 1064 nm)
Leg Coated
Knife-Edge, Metallic and Dielectric Coatings
(250 nm - 20 µm)
Dielectric Coatings (400 nm - 1100 nm)

Features

  • Right-Angle Prism with Dielectric-Coated Legs
  • Two Broadband Dielectric Coatings with Ravg > 99% for 400 - 750 nm or 750 - 1100 nm
  • Leg Lengths Ranging from 5.0 mm to 25.0 mm

Thorlabs' Leg-Coated Right-Angle Prism Mirrors feature dielectric coatings on the two legs and offer a clear aperture greater than 70% of the face length and width. Note that this clear aperture does not include the beveled edge between the two legs. These prism mirrors are manufactured from N-BK7 and are offered with dielectric coating ranges of 400 - 750 nm or 750 - 1100 nm. Please see the Specs and Graphs tabs above for details on the reflectance of the two coatings.

Leg-Coated Prism Application
Click to Enlarge

A leg-coated prism mirror can be used to create an optical delay line.

These mirrors can be used optical delay lines, which can be used to extend the path length in an optical system. They allow two counterpropagating beams to be made parallel with the output orthogonal to the input, as shown to the left. For applications which seek to split a beam orthogonally or combine two inputs into an orthogonal co-linear output, please view our knife-edge right-angle prisms.

While the hypotenuse is polished, these mirrors are not intended for use as retroreflectors due to the adhesion layers used in the coating process. For retroreflection applications we suggest the PS911K, an uncoated version of our right angle prisms, or our selection of mounted and unmounted retroreflectors. Thorlabs also offers a selection of hypotenuse-coated right-angle prism mirrors.

Additional leg sizes and coatings are available upon request. Please contact Tech Support with inquiries.

Prism Schematic
Right-Angle Prism Diagram
Common Specifications
Substrate Material N-BK7a
Dimensional Tolerance ±0.1 mm
Surfaces Flatness λ/10 @ 633 nm (Peak to Valley)
Surfaces Quality 10-5 Scratch-Dig
Clear Aperture >70% of Face Length and Width
45°-45°-90° Prism Angular Tolerance ±3 arcmin
Item # La Xa Reflectance
(Click for Graph)
Broadband Dielectric Coating: 400 nm - 750 nm
MRA05L-E02 5.0 mm 7.1 mm Ravg > 99%
(400 nm - 750 nm)
MRA10L-E02 10.0 mm 14.1 mm
MRA12L-E02 12.5 mm 17.7 mm
MRA20L-E02 20.0 mm 28.3 mm
MRA25L-E02 25.0 mm 35.4 mm
Broadband Dielectric Coating: 750 nm - 1100 nm
MRA05L-E03 5.0 mm 7.1 mm Ravg > 99%
(750 nm - 1100 nm)
MRA10L-E03 10.0 mm 14.1 mm
MRA12L-E03 12.5 mm 17.7 mm
MRA20L-E03 20.0 mm 28.3 mm
MRA25L-E03 25.0 mm 35.4 mm
  • As Specified in the Leftmost Drawing
Prism Schematic
Right-Angle Prism Dimensions

These plots show the reflectance of our -E02 (400 - 750 nm) and -E03 (750 - 1100 nm) dielectric coatings for a typical coating run. The shaded region in each graph denotes the spectral range over which the coating is highly reflective. Due to variations in each run, this recommended spectral range is narrower than the actual range over which the optic will be highly reflective. If you have any concerns about the interpretation of this data, please contact Tech Support. For applications that require a mirror that bridges the spectral range between the dielectric coatings, please consider a metallic mirror.

-E02 Coating (400 - 750 nm)

Excel Spreadsheet with Raw Data for -E02 Coating, 8° and 45° AOI

-E03 Coating (750 - 1100 nm)

Excel Spreadsheet with Raw Data for -E03 Coating, 8° and 45° AOI


Posted Comments:
Aaron Riede  (posted 2019-11-13 03:09:48.053)
Hi Thorlabs! Do you offer these leg-coated right angle prism mirrors also with metallic coating? Best Aaron
YLohia  (posted 2019-11-13 10:58:41.0)
Hello Aaron, thank you for contacting Thorlabs. Custom optics can be requested by emailing techsupport@thorlabs.com. We currently do not offer versions of these with metallic coatings. We do, however, offer metal-coated knife-edge right angle prism mirrors that can be used for the same applications here : https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=6760

Leg-Coated Right-Angle Prism Mirrors, Dielectric Coating (400 nm - 750 nm)

  • Five Sizes Available with Leg Dimensions from 5.0 mm to 25.0 mm
  • Average Reflectance: >99% (400 - 750 nm)

These broadband dielectric-coated right angle prisms are ideal for near-normal and 45° reflections. They perform well with both S- and P-polarized light over their specified wavelength range of 400 - 750 nm. For more information on the typical performance of these mirrors, please see the Graphs tab. For detailed specifications on each prism mirror, please see the Specs tab.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MRA05L-E02 Support Documentation
MRA05L-E02NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 400 - 750 nm, L = 5.0 mm
$102.04
Today
MRA10L-E02 Support Documentation
MRA10L-E02NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 400 - 750 nm, L = 10.0 mm
$124.35
Today
MRA12L-E02 Support Documentation
MRA12L-E02NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 400 - 750 nm, L = 12.5 mm
$135.61
Today
MRA20L-E02 Support Documentation
MRA20L-E02NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 400 - 750 nm, L = 20.0 mm
$153.20
Today
MRA25L-E02 Support Documentation
MRA25L-E02NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 400 - 750 nm, L = 25.0 mm
$185.31
Today

Leg-Coated Right-Angle Prism Mirrors, Dielectric Coating (750 nm - 1100 nm)

  • Five Sizes Available with Leg Dimensions from 5.0 mm to 25.0 mm
  • Average Reflectance: >99% (750 nm - 1100 nm)

These broadband dielectric-coated right angle prisms are ideal for near-normal and 45° reflections. They perform well with both S- and P-polarized light over their specified wavelength range of 750 - 1100 nm. For more information on the typical performance of these mirrors, please see the Graphs tab. For detailed specifications on each prism mirror, please see the Specs tab.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
MRA05L-E03 Support Documentation
MRA05L-E03NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 750 - 1100 nm, L = 5.0 mm
$108.93
Today
MRA10L-E03 Support Documentation
MRA10L-E03NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 750 - 1100 nm, L = 10.0 mm
$131.66
Today
MRA12L-E03 Support Documentation
MRA12L-E03NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 750 - 1100 nm, L = 12.5 mm
$141.90
Lead Time
MRA20L-E03 Support Documentation
MRA20L-E03NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 750 - 1100 nm, L = 20.0 mm
$161.99
Today
MRA25L-E03 Support Documentation
MRA25L-E03NEW!Customer Inspired! Leg-Coated Right-Angle Prism Dielectric Mirror, 750 - 1100 nm, L = 25.0 mm
$192.62
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