Share Email Print
cover

Proceedings Paper

Rugged spinel windows and optics for harsh environments
Author(s): Shyam Bayya; Guillermo Villalobos; Woohong Kim; Lynda Busse; Jasbinder Sanghera; Ishwar Aggarwal
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Spinel is a rugged ceramic transparent from ultraviolet to midwave infrared (0.18 – 5.5 μm) wavelengths. It has the best transmission from 4-5 μm among the competing materials ALON and sapphire with comparable mechanical properties. We have developed low absorption loss spinel as an exit window aperture for High Energy Laser systems. We demonstrated that spinel possesses excellent thermo-optical characteristics required for the High Energy Laser systems and at the same time it can provide the necessary ruggedness desired for the realistic and harsh battlefield environment. We have demonstrated through testing that spinel can withstand very adverse conditions of rain, sand storms and salt fog conditions without any change in its optical performance. We have also developed rugged anti-reflective coatings and anti-reflective surface structures to maintain high optical transmission in adverse environment.

Paper Details

Date Published: 31 May 2013
PDF: 6 pages
Proc. SPIE 8720, Photonic Applications for Aerospace, Commercial, and Harsh Environments IV, 872007 (31 May 2013); doi: 10.1117/12.2016309
Show Author Affiliations
Shyam Bayya, U.S. Naval Research Lab. (United States)
Guillermo Villalobos, U.S. Naval Research Lab. (United States)
Woohong Kim, U.S. Naval Research Lab. (United States)
Lynda Busse, U.S. Naval Research Lab. (United States)
Jasbinder Sanghera, U.S. Naval Research Lab. (United States)
Ishwar Aggarwal, Sotera Defense Solutions, Inc. (United States)


Published in SPIE Proceedings Vol. 8720:
Photonic Applications for Aerospace, Commercial, and Harsh Environments IV
Alex A. Kazemi; Bernard C. Kress; Simon Thibault, Editor(s)

© SPIE. Terms of Use
Back to Top