Development of nanostructured protective "sight glasses" for IR gas sensors

René Bergmann; Zachary James Davis; Michael Stenbæk Schmidt; Sønnik Clausen; Anja Boisen; Jens Møller Jensen; Rainer Buchner; Thomine Stolberg-Rohr; Mogens Havsteen Jakobsen

doi:10.1117/12.883921

20 May 2011 Development of nanostructured protective "sight glasses" for IR gas sensors

René Bergmann, Zachary James Davis, Michael Stenbæk Schmidt, Sønnik Clausen, Anja Boisen, Jens Møller Jensen, Rainer Buchner, Thomine Stolberg-Rohr, Mogens Havsteen Jakobsen

Author Affiliations +

Proceedings Volume 8016, Window and Dome Technologies and Materials XII; 80160S (2011) https://doi.org/10.1117/12.883921
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

In this work protective "sight glasses" for infrared gas sensors showing a sub-wavelength nanostructure with random patterns have been fabricated by reactive ion etching (RIE) in an easy and comparable cheap single step mask-less process. By an organic coating, the intrinsic water repellent property of the surface could be enhanced, shown by contact angle and roll-off angle measurements. The "self-cleaning" surface property and chemical robustness towards aggressive environments are demonstrated. FT-IR spectroscopy concerning the optical properties of these nanostructured silicon windows revealed a stable anti-reflective "moth-eye" effect in certain wavelength ranges owing to the nanostructures.

Citation Download Citation

René Bergmann, Zachary James Davis, Michael Stenbæk Schmidt, Sønnik Clausen, Anja Boisen, Jens Møller Jensen, Rainer Buchner, Thomine Stolberg-Rohr, and Mogens Havsteen Jakobsen "Development of nanostructured protective "sight glasses" for IR gas sensors", Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160S (20 May 2011); https://doi.org/10.1117/12.883921

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