Recent developments in transparent polycrystalline spinel for electro-optic applications

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

doi:10.1117/12.820465

27 April 2009 Recent developments in transparent polycrystalline spinel for electro-optic applications

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

Proceedings Volume 7302, Window and Dome Technologies and Materials XI; 73020F (2009) https://doi.org/10.1117/12.820465
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

High optical quality spinel is being developed as exit aperture (windows and domes) for various electro-optic (EO) and infrared (IR) systems operating in harsh environmental conditions. These applications require windows with low absorption loss, low scattering loss, good index homogeneity, low transmitted wavefront error and high strength. Windows are also required in very large sizes and thicknesses for specialty applications. We have demonstrated fabrication of high optical quality spinel windows with high strength and environmental ruggedness. We achieved record low absorption loss of 6 ppm/cm at 1.06 μm and transmitted wavefront error of better than λ/10 at 633 nm. We are also developing technology for making very large and very thick spinel windows.

Citation Download Citation

Ishwar Aggarwal, Shyam Bayya, Guillermo Villalobos, Woohong Kim, and Jasbinder Sanghera "Recent developments in transparent polycrystalline spinel for electro-optic applications", Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 73020F (27 April 2009); https://doi.org/10.1117/12.820465

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