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Proceedings Paper

Development of diffractive antireflection structures on ZnSe for high power CO2 laser applications
Author(s): Fabien Reversat; Thierry Berthou; Stéphane Tisserand; Lionel Dupuy; Sophie Gautier; Peter Muys; Danae Delbeke; David Grojo; Mohammed Laraichi; Philippe Delaporte
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Paper 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.

Paper Details

Date Published: 14 May 2008
PDF: 8 pages
Proc. SPIE 6992, Micro-Optics 2008, 69920I (14 May 2008); doi: 10.1117/12.782633
Show Author Affiliations
Fabien Reversat, SILIOS Technologies (France)
Thierry Berthou, SILIOS Technologies (France)
Stéphane Tisserand, SILIOS Technologies (France)
Lionel Dupuy, SILIOS Technologies (France)
Sophie Gautier, SILIOS Technologies (France)
Peter Muys, Lambda Research Optics Europe (Belgium)
Danae Delbeke, Ghent Univ. (Belgium)
David Grojo, LP3 Lab. (France)
Mohammed Laraichi, LP3 Lab. (France)
Philippe Delaporte, LP3 Lab. (France)

Published in SPIE Proceedings Vol. 6992:
Micro-Optics 2008
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Mohammad R. Taghizadeh, Editor(s)

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