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Proceedings Paper

Laser-induced damage behaviour of different kind of germanium
Author(s): K. Diener; L. Gernandt; J.-P. Moeglin; P. Ambs
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Paper Abstract

An original compact test method of studying the influence of a modified Nd:YAG laser beam irradiation at the unusual wavelength of λ = 1.3 μm on IR-Ge-windows is investigated: optical parameters such as transmission loss, surface temperature during the laser irradiation, morphological deformation, and damage thresholds are measured in real time and compared with theoretical simulations. To study the thermal-mechanical relationship of the laser-matter interaction, an original pyrometer array is developed for the temperature-profile measurement and an original deformation experimental set-up, including a "line generator", is introduced. The damage behaviour of germanium at the wavelength of λ = 1.3 μm is also presented in this paper.

Paper Details

Date Published: 13 October 2005
PDF: 8 pages
Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 59890G (13 October 2005); doi: 10.1117/12.628966
Show Author Affiliations
K. Diener, French-German Research Institute of Saint-Louis (France)
L. Gernandt, French-German Research Institute of Saint-Louis (France)
J.-P. Moeglin, French-German Research Institute of Saint-Louis (France)
P. Ambs, Univ. de Haute Alsace (France)


Published in SPIE Proceedings Vol. 5989:
Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II
Sean M. Kirkpatrick; David H. Titterton; Roger Appleby; J. Martyn Chamberlain; Razvan Stoian; Keith A. Krapels, Editor(s)

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