RMI Infrared Brewster Window - ZnSe - Ge - Chalcogenide Glass
Description
Brewster Windows are primarily used in laser cavities to produce a beam with a high degree of polarization purity. When unpolarized light is incident on an uncoated substrate at Brewster’s Angle, the reflected portion is completely S polarized and the transmitted portion is partially P polarized. Multiple passes through the substrate substantially reduces the S component in the transmitted beam, resulting in a highly P polarized output. Multi-layer Thin Film Polarizer coatings can be applied to these substrates to greatly improve efficiency and extinction ratio on a single pass through the substrate.
Brewster windows are an economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of light traveling in optical cavities.
Brewster's angle can be calculated using the following equation:
θB=Arctan(nw/na)
Where θB is Brewster's angle and nw and na are the indices of refraction for the window and the ambient respectively. na is usually assumed to be 1 for air.
RMI Infrared Brewster Window - ZnSe - Ge - Chalcogenide Glass
Specifications |
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|---|---|
| Substrate Material: | ZnSe, Ge, Chalcogenide Glass |
| Surface Quality (Scratch-Dig): | 40-20 |
| Wavefront Distortion: | <= Lambda/20 |
| Diameter (Minor Axis): | - mm |
| Thickness: | - mm |
| Thickness And Diameter: | Based on customer needs |
Applications
- Brewster Windows are primarily used in laser cavities to produce a beam with a high degree of polarization purity.
- Economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of light traveling in optical cavities.
For pricing, technical or any other questions please contact the supplier
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- No markups, no fees
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How to order?
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Ships from:
United States
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Sold by:
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On FindLight:
since 2015
Frequently Asked Questions
Brewster Windows are primarily used in laser cavities to produce a beam with a high degree of polarization purity. They are also an economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of light traveling in optical cavities.
Brewster's angle can be calculated using the following equation: θB=Arctan(nw/na) where θB is Brewster's angle and nw and na are the indices of refraction for the window and the ambient respectively. na is usually assumed to be 1 for air.
The available materials for the RMI Infrared Brewster Window are ZnSe, ZnS, Ge, Silicon, CaF2, Sapphire, Fused Silica, and SF.
The surface quality of the RMI Infrared Brewster Window is greater than 85%.
The thickness tolerance of the RMI Infrared Brewster Window is ±.010''.