17 May 2006 Development of high performance radiation hardened antireflection coatings for LWIR and multicolor IR focal plane arrays
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Abstract
High Performance Radiation Hardened LWIR and Multicolor Focal Plane Arrays are critical for many space applications. Reliable focal plane arrays are needed for these applications that can operate in space environment without any degradation. In this paper, we will present various LWIR and Multicolor Focal Plane architectures currently being evaluated for LWIR and Multicolor applications that include focal plane materials such as HgCdTe, PbSnTe, QWIP and other Superlattice device structures. We also present AR Coating models and experimental results on several promising multi-layer AR coatings that includes CdTe, Si3N4 and diamond like Carbon, that have the necessary spectral response in the 2-25 microns and are hard materials with excellent bond strength. A combination of these materials offers the potential of developing anti-reflection coatings with high optical quality with controlled physical properties.
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Ashok K. Sood, Ashok K. Sood, Yash R. Puri, Yash R. Puri, Latika Becker, Latika Becker, Meimei Z. Tidrow, Meimei Z. Tidrow, Raymond S. Balcerak, Raymond S. Balcerak, Gregory Brill, Gregory Brill, Priyalal Wijewarnasuriya, Priyalal Wijewarnasuriya, Nibir Dhar, Nibir Dhar, Paul Boieriu, Paul Boieriu, Chad Fulk, Chad Fulk, Siva Sivananthan, Siva Sivananthan, Joseph Yehoda, Joseph Yehoda, Steve Finke, Steve Finke, } "Development of high performance radiation hardened antireflection coatings for LWIR and multicolor IR focal plane arrays", Proc. SPIE 6206, Infrared Technology and Applications XXXII, 620615 (17 May 2006); doi: 10.1117/12.667812; https://doi.org/10.1117/12.667812
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