Preliminary Performance Data On An Improved Optical Black For Infrared Use

Stephen M. Pompea; Derek W. Bergener; Donald F. Shepard; William L. Wolfe

doi:10.1117/12.935489

18 September 1983 Preliminary Performance Data On An Improved Optical Black For Infrared Use

Stephen M. Pompea, Derek W. Bergener, Donald F. Shepard, William L. Wolfe

Proceedings Volume 0400, New Optical Materials; (1983) https://doi.org/10.1117/12.935489
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

The Martin Black process has been used to coat baffles on a wide variety of visible and ultraviolet range instruments. Its infrared applications include baffles for the Infrared Astronomy Satellite and the Spacelab 2 Infrared Telescope. Because of the increased emphasis on stray light suppression in the infrared, a series of experiments on the Martin Black process were conducted with the objective of better understanding the effects of various processing parameters on obtaining a blacker infrared surface. These experiments resulted in the creation of an infrared absorbing surface, called Infrablack, which retains the excellent visible absorption properties of its predecessor and has increased infrared absorption. We report here measurements made on the new surface that characterize its optical properties in the infrared. These measurements represent the results of only the first stage of our improvement program. Data are presented on the specular and hemispherical reflectivity and the BRDF (Bidirectional Reflectance Distribution Function) of the Infrablack. The measurements to date support the belief that the Infrablack surface can be made even more absorbent in the infrared in the next phase of the process improve-ment.

Citation Download Citation

Stephen M. Pompea, Derek W. Bergener, Donald F. Shepard, and William L. Wolfe "Preliminary Performance Data On An Improved Optical Black For Infrared Use", Proc. SPIE 0400, New Optical Materials, (18 September 1983); https://doi.org/10.1117/12.935489

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