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Optical Coatings for High Energy ZnSe Laser Windows
Applied Optics
|February 6, 2010
Summary
Advanced surface finishing and coating techniques for polycrystalline zinc selenide (ZnSe) laser windows at 10.6 micrometers significantly reduce optical losses. New methods achieve less than 0.1% absorption and reflection per surface.
Area of Science:
- Materials Science
- Optical Engineering
- Laser Technology
Background:
- Polycrystalline zinc selenide (ZnSe) is a critical material for laser optics.
- Effective surface finishing and coating are essential for minimizing optical losses in ZnSe laser windows.
Purpose of the Study:
- To develop and present advanced surface finishing and coating technologies for 10.6 micrometer laser applications.
- To evaluate the optical performance of coated ZnSe laser windows.
Main Methods:
- Detailed surface finishing procedures for ZnSe.
- Theoretical design of antireflection coatings for 10.6 micrometers.
- Experimental fabrication and optical evaluation of coated ZnSe samples.
Main Results:
- Optical evaluation demonstrated low absorption and reflection values below 0.1% per surface at 10.6 micrometers.
- Successful application of surface finishing and coating techniques to ZnSe laser windows.
Conclusions:
- The developed surface finishing and coating technologies are highly effective for ZnSe laser windows.
- Achieved optical performance meets stringent requirements for 10.6 micrometer laser systems.
