15 October 2005 Study of the performance of optical-grade germanium infrared materials using various optical characterization techniques
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Abstract
Optimization of the optical quality of optical-grade germanium components requires an in-depth investigation of the different contributions to the optical loss in germanium. In this paper we therefore focus on this optical characterization. We give an overview of possible characterization techniques to determine surface roughness, surface/bulk absorption and refractive index inhomogeneities and we highlight the obtained optical characteristics. To conclude we select the most appropriate non-destructive characterization tool for each optical parameter.
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Heidi Otteavare, Heidi Otteavare, Steven Brantegem, Steven Brantegem, Virginia Gomez, Virginia Gomez, Erik Stijns, Erik Stijns, Hugo Thienpont, Hugo Thienpont, Igor Romandic, Igor Romandic, Jan Van Nylen, Jan Van Nylen, Hans Vercammen, Hans Vercammen, Dirk Vyncke, Dirk Vyncke, } "Study of the performance of optical-grade germanium infrared materials using various optical characterization techniques", Proc. SPIE 5990, Optically Based Materials and Optically Based Biological and Chemical Sensing for Defence II, 59900B (15 October 2005); doi: 10.1117/12.633533; https://doi.org/10.1117/12.633533
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