Initial studies of the bidirectional reflectance distribution function of carbon nanotube structures for stray light control applications

James J. Butler; Georgi T. Georgiev; June L. Tveekrem; Manuel Quijada; Stephanie Getty; John G. Hagopian

doi:10.1117/12.869569

4 November 2010 Initial studies of the bidirectional reflectance distribution function of carbon nanotube structures for stray light control applications

James J. Butler, Georgi T. Georgiev, June L. Tveekrem, Manuel Quijada, Stephanie Getty, John G. Hagopian

Author Affiliations +

Proceedings Volume 7862, Earth Observing Missions and Sensors: Development, Implementation, and Characterization; 78620D (2010) https://doi.org/10.1117/12.869569
Event: SPIE Asia-Pacific Remote Sensing, 2010, Incheon, Korea, Republic of

Abstract

The Bidirectional Reflectance Distribution Function (BRDF) at visible and near-infrared wavelengths of Multi-Wall Carbon NanoTubes (MWCNTs) grown on substrate materials are reported. The BRDF measurements were performed in the Diffuser Calibration Laboratory (DCaL) at NASA's Goddard Space Flight Center, and results at 500nm and 900nm are reported here. In addition, the 8° Directional/Hemispherical Reflectance of the samples is reported from the ultraviolet to shortwave infrared. The 8° Directional/Hemispherical Reflectance was measured in the Optics Branch at NASA's Goddard Space Flight Center. The BRDF was measured at 0° and 45° incident angles and from -80° to +80° scatter angles using a monochromatic source. The optical scatter properties of the samples as represented by their BRDF were found to be strongly influenced by the choice of substrate. As a reference, the optical scattering properties of the carbon nanotubes are compared to the BRDF of Aeroglaze Z306^TM and Rippey Ultrapol IV^TM, a well-known black paint and black appliqué, respectively. The possibility, promise, and challenges of employing carefully engineered carbon nanotubes in straylight control applications particularly for spaceflight instrumentation is also discussed.

Citation Download Citation

James J. Butler, Georgi T. Georgiev, June L. Tveekrem, Manuel Quijada, Stephanie Getty, and John G. Hagopian "Initial studies of the bidirectional reflectance distribution function of carbon nanotube structures for stray light control applications", Proc. SPIE 7862, Earth Observing Missions and Sensors: Development, Implementation, and Characterization, 78620D (4 November 2010); https://doi.org/10.1117/12.869569

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