Development of diffractive antireflection structures on ZnSe for high power CO2 laser applications

Fabien Reversat; Thierry Berthou; Stéphane Tisserand; Lionel Dupuy; Sophie Gautier; Peter Muys; Danae Delbeke; David Grojo; Mohammed Laraichi; Philippe Delaporte

doi:10.1117/12.782633

14 May 2008 Development of diffractive antireflection structures on ZnSe for high power CO₂ laser applications

Fabien Reversat, Thierry Berthou, Stéphane Tisserand, Lionel Dupuy, Sophie Gautier, Peter Muys, Danae Delbeke, David Grojo, Mohammed Laraichi, Philippe Delaporte

Author Affiliations +

Proceedings Volume 6992, Micro-Optics 2008; 69920I (2008) https://doi.org/10.1117/12.782633
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

The unavoidable absorption of thin films used in antireflective coatings forms a permanent bottleneck in the development of optics for high power laser applications. A valid alternative would be the micro-structuring of the optics surface, realizing a diffraction grating which emulates the functioning of an Anti-Reflection thin film layer. Due to the absence of film material, this diffractive structure would not contribute to the overall absorption of the optics. This paper investigates the practical limits of this strategy, applied to zinc selenide as low absorption infrared substrate material.

Citation Download Citation

Fabien Reversat, Thierry Berthou, Stéphane Tisserand, Lionel Dupuy, Sophie Gautier, Peter Muys, Danae Delbeke, David Grojo, Mohammed Laraichi, and Philippe Delaporte "Development of diffractive antireflection structures on ZnSe for high power CO₂ laser applications", Proc. SPIE 6992, Micro-Optics 2008, 69920I (14 May 2008); https://doi.org/10.1117/12.782633

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