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Proceedings Paper

Spectrally resolved laser calorimetric absorptance measurements
Author(s): L. Jensen; I. Balasa; K. Starke; D. Ristau
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Paper Abstract

So far, laser calorimetry (LCA) as absorptance measurement procedure according to ISO 11551 has been commonly performed at a variety of selected laser wavelengths. Thus, this procedure has been a valuable tool for optimization processes of dielectric coatings. For an even more comprehensive detection of any absorbing contribution in a dielectric layer stack a free selectable test wavelength gives more detailed insights in optics characterization. According to this approach an OPO system was implemented in a laser calorimetric test bench. By this, a tunable laser source with sufficient laser power is available to conduct calorimetric absorptance measurements. Results of detailed investigations of the contribution of the material constituents of a dielectric optical component are presented in this paper.

Paper Details

Date Published: 20 December 2007
PDF: 8 pages
Proc. SPIE 6720, Laser-Induced Damage in Optical Materials: 2007, 67201C (20 December 2007); doi: 10.1117/12.752907
Show Author Affiliations
L. Jensen, Laser Zentrum Hannover e.V. (Germany)
I. Balasa, Laser Zentrum Hannover e.V. (Germany)
K. Starke, Laser Zentrum Hannover e.V. (Germany)
D. Ristau, Laser Zentrum Hannover e.V. (Germany)

Published in SPIE Proceedings Vol. 6720:
Laser-Induced Damage in Optical Materials: 2007
Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; Detlev Ristau; M. J. Soileau; Christopher J. Stolz, Editor(s)

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