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Proceedings Paper

Superhydrophobic, infrared transmissive moth eye-like substrates for use in wet conditions
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Paper Abstract

Infrared (IR) transmissive moth eye-like substrates, including randomly patterned fused silica and various periodically patterned germanium substrates, were surface modified using a simple process. Goniometric analysis showed that the surface modification altered the surface wettability of each substrate, rendering them superhydrophobic. Following the surface modification, it was determined that the desirable IR transmission and antireflective properties of each substrate type were maintained. Furthermore, the hydrophobicity, IR transmission and antireflective capabilities of the substrates were shown to be significantly enhanced in comparison to native, non-patterned fused silica and germanium substrates that underwent the same processes. The results of this work provide an opportunity for the development of enhanced utility for infrared transmissive optics in wet or humid conditions.

Paper Details

Date Published: 3 May 2017
PDF: 8 pages
Proc. SPIE 10179, Window and Dome Technologies and Materials XV, 1017906 (3 May 2017); doi: 10.1117/12.2263078
Show Author Affiliations
Darryl A. Boyd, U.S. Naval Research Lab. (United States)
Jesse A. Frantz, U.S. Naval Research Lab. (United States)
Lynda E. Busse, U.S. Naval Research Lab. (United States)
Woohong Kim, U.S. Naval Research Lab. (United States)
Shyam S. Bayya, U.S. Naval Research Lab. (United States)
Ishwar D. Aggarwal, The Univ. of North Carolina at Charlotte (United States)
Jasbinder S. Sanghera, U.S. Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 10179:
Window and Dome Technologies and Materials XV
Brian J. Zelinski, Editor(s)

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