Polycrystalline yttrium aluminum garnet (YAG) for IR transparent missile domes and windows

J. C. Huie; C. B. Dudding; J. McCloy

doi:10.1117/12.719521

4 May 2007 Polycrystalline yttrium aluminum garnet (YAG) for IR transparent missile domes and windows

J. C. Huie, C. B. Dudding, J. McCloy

Proceedings Volume 6545, Window and Dome Technologies and Materials X; 65450E (2007) https://doi.org/10.1117/12.719521
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

Polycrystalline Yttrium Aluminum Garnet (YAG) is being considered as an attractive material candidate for IR transparent missile domes and reconnaissance windows, due to its superior optical clarity and mechanical properties compared to the incumbent material choices. YAG possesses a very uniform index of refraction with minimal variation. Its fracture strength, hardness, and toughness also rank high among various other optically transparent materials and can be optimized further through grain size minimization. Polycrystalline YAG has been in development for several years at Raytheon for laser gain and IR transparency applications. Recent advances in optical loss characterization and optimization, scale-up efforts, and the fabrication of non-planar geometries such as hemispherical domes will be presented. In addition, the YAG material trade study conducted to date on thermal, optical, mechanical properties are discussed.

Citation Download Citation

J. C. Huie, C. B. Dudding, and J. McCloy "Polycrystalline yttrium aluminum garnet (YAG) for IR transparent missile domes and windows", Proc. SPIE 6545, Window and Dome Technologies and Materials X, 65450E (4 May 2007); https://doi.org/10.1117/12.719521

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