Development of diffractive antireflection structures on ZnSe for high power CO 2 laser applications

Autor: Sophie Gautier, Lionel Dupuy, David Grojo, T. Berthou, Mohammed Laraichi, Philippe Delaporte, Stephane Tisserand, Danaë Delbeke, Peter Muys, Fabien Reversat
Rok vydání: 2008
Předmět:
Zdroj: Micro-Optics 2008.
ISSN: 0277-786X
DOI: 10.1117/12.782633
Popis: 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.
Databáze: OpenAIRE