Multispectral infrared BRDF forward-scatter measurements of common black surface preparations and materials -- or "how black is black in the IR?"

John Lester Miller

doi:10.1117/12.532620

12 April 2004 Multispectral infrared BRDF forward-scatter measurements of common black surface preparations and materials -- or "how black is black in the IR?"

John Lester Miller

Author Affiliations +

Proceedings Volume 5405, Thermosense XXVI; (2004) https://doi.org/10.1117/12.532620
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

Fundamental to the design of an infrared sensor is controlling the stray light and internal radiation emission. A series of Bi-directional Reflectance Distribution Function (BRDF) measurements at two infrared bandpasses in the MWIR and LWIR were acquired. Incident beams were oriented 10 and 60-degrees from normal. Forward-scatter (key to baffles and cold-shields) data is presented for infrared black surface preparations including: anodizing, copper oxide, nickel oxide, black paints, and trademarked black surfaces. Comparison is also made between selected surfaces before and after exposure to 78 Kelvin (LN2) thermal cycles. This paper also includes scanning electron microscope (SEM) images and discrete Fourier transform (DFT)) measurements for selected black surfaces, including comparisons of damaged and undamaged nickel oxide.

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John Lester Miller "Multispectral infrared BRDF forward-scatter measurements of common black surface preparations and materials -- or "how black is black in the IR?"", Proc. SPIE 5405, Thermosense XXVI, (12 April 2004); https://doi.org/10.1117/12.532620

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