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Beam splitter and reflection reducing coatings on ZnSe for 3-14 microm
Applied Optics
|March 10, 2010
Summary
New achromatic coatings offer wideband amplitude division and reflection reduction for infrared interferometer spectrometers. These coatings are designed for demanding applications, including spaceflight and laboratory use.
Area of Science:
- Optical Engineering
- Materials Science
Background:
- Interferometer spectrometers require specialized optical coatings for precise measurements.
- Wideband performance and reflection reduction are critical for infrared applications.
Purpose of the Study:
- To develop achromatic coatings for wideband amplitude division and reflection reduction.
- To enable reliable interferometer spectrometer operation in diverse environments.
Main Methods:
- Coating development on Chemical Vapor Deposited Zinc Selenide (CVD ZnSe).
- Testing for performance in the 3-14 micrometer wavelength region.
- Evaluation at 45 degrees angle of incidence.
Main Results:
- Successfully developed achromatic coatings meeting design specifications.
- Demonstrated wideband amplitude division and reflection reduction.
- Achieved results in good agreement with theoretical predictions.
Conclusions:
- The developed achromatic coatings are suitable for infrared interferometer spectrometers.
- These coatings enhance performance in both laboratory and spaceflight conditions.
- The technology supports advanced optical instrumentation.
