Rugged spinel windows and optics for harsh environments

Shyam Bayya; Guillermo Villalobos; Woohong Kim; Lynda Busse; Jasbinder Sanghera; Ishwar Aggarwal

doi:10.1117/12.2016309

31 May 2013 Rugged spinel windows and optics for harsh environments

Shyam Bayya, Guillermo Villalobos, Woohong Kim, Lynda Busse, Jasbinder Sanghera, Ishwar Aggarwal

Proceedings Volume 8720, Photonic Applications for Aerospace, Commercial, and Harsh Environments IV; 872007 (2013) https://doi.org/10.1117/12.2016309
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

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.

Citation Download Citation

Shyam Bayya, Guillermo Villalobos, Woohong Kim, Lynda Busse, Jasbinder Sanghera, and Ishwar Aggarwal "Rugged spinel windows and optics for harsh environments", Proc. SPIE 8720, Photonic Applications for Aerospace, Commercial, and Harsh Environments IV, 872007 (31 May 2013); https://doi.org/10.1117/12.2016309

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available