Enhancing the quality of optical grade Germanium: novel techniques and dedicated instrumentation

Heidi Otteavare; Steven Brantegem; Virginia Gomez; Erik Stijns; Hugo Thienpont; Igor Romandic; Jan Van Nylen; Hans Vercammen; Dirk Vyncke

doi:10.1117/12.633533

15 October 2005 Study of the performance of optical-grade germanium infrared materials using various optical characterization techniques

Heidi Otteavare, Steven Brantegem, Virginia Gomez, Erik Stijns, Hugo Thienpont, Igor Romandic, Jan Van Nylen, Hans Vercammen, Dirk Vyncke

Author Affiliations +

Proceedings Volume 5990, Optically Based Materials and Optically Based Biological and Chemical Sensing for Defence II; 59900B (2005) https://doi.org/10.1117/12.633533
Event: European Symposium on Optics and Photonics for Defence and Security, 2005, Bruges, Belgium

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, Steven Brantegem, Virginia Gomez, Erik Stijns, Hugo Thienpont, Igor Romandic, Jan Van Nylen, Hans Vercammen, and 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); https://doi.org/10.1117/12.633533

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