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Proceedings Paper

Compact, on-demand broad spectral range (visible to long wave infrared) calibrator (Conference Presentation)
Author(s): James Chow; Edward Ward
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Paper Abstract

First, the emission wavelengths from visible to short-wave infrared are generated by Light Emitting Diodes (LEDs) and phosphors which spectrally down convert the higher energy photons from the LED to a lower energy photon distribution. This process is analogous to the commercial lighting industry where blue LEDs are down converted into a distribution that resembles variations of white light. Second, several formats of carbon materials have been combined together into a multi-layer structure so that a highly uniform temperature interface feeds a high emissivity surface of vertically aligned carbon nanotubes. Finally, both of these technologies give rise to a thin profile, layered structure which can be easily mounted on a paddle for movement in and out of the optical path.

Paper Details

Date Published: 19 September 2017
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Proc. SPIE 10402, Earth Observing Systems XXII, 104020W (19 September 2017); doi: 10.1117/12.2276958
Show Author Affiliations
James Chow, Raytheon Space and Airborne Systems (United States)
Edward Ward, Raytheon Space and Airborne Systems (United States)


Published in SPIE Proceedings Vol. 10402:
Earth Observing Systems XXII
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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