ZnSe Polarizers
ZnSe polarizers control infrared polarization from near-IR to longer IR bands using grating-based ZnSe optics for spectroscopy and laser systems.
Quick Specifications
Product Description
Overview
ZnSe polarizers operate in transmission and are used to polarize infrared radiation from approximately 1.5 µm to 14 µm in the source note. The design is based on a grating-style polarizing structure on an infrared substrate, with metal coating on one groove facet to support polarization control.
Why This Design Matters
ZnSe is selected for infrared optical layouts where transmission, substrate compatibility, aperture, and coating behavior must be matched to the beam path. Engineers should confirm wavelength, aperture, extinction ratio target, transmission requirement, mounting format, and whether the optic is used with a CO2 laser, FTIR bench, sensor path, or electro-optic modulation system.
Key Specification Summary
| Parameter | Value |
|---|---|
| Substrate Material | ZnSe |
| Spectral Range | 1.5-14 µm |
| Standard Holder Size | D42×8 mm at typical aperture |
| Typical Operation Aperture | 25×25 mm |
| Maximal Operation Aperture | 50×50 mm / D50 |
| Grooves per mm | 1200 |
| Unwanted Radiation K2 | 1-2% @ 2 µm; <0.1% @ 10 µm |
| Extinction Ratio | E = K1/(2*K2), coating-dependent |
Application Guidance
- Microscopy and infrared imaging setups
- Thin film layer studies
- Semiconductor inspection and material studies
- Electro-optic modulation systems
- Molecular orientation studies of crystal or polymer films
- Sensors, detectors, and spectroscopic instruments
Engineering Notes and Inquiry
For quotation review, provide wavelength band, clear aperture, holder size, extinction ratio target, required transmission, coating preference, and drawing constraints. Use the contact form to request engineering review, or browse related ZnSe optical components.
Key Features
Applications
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