Compact, on-demand broad spectral range (visible to long wave infrared) calibrator (Conference Presentation)

James Chow; Edward Ward Jr.

doi:10.1117/12.2276958

19 September 2017 Compact, on-demand broad spectral range (visible to long wave infrared) calibrator (Conference Presentation)

James Chow, Edward Ward Jr.

Author Affiliations +

Proceedings Volume 10402, Earth Observing Systems XXII; 104020W (2017) https://doi.org/10.1117/12.2276958
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

James Chow and Edward Ward Jr. "Compact, on-demand broad spectral range (visible to long wave infrared) calibrator (Conference Presentation)", Proc. SPIE 10402, Earth Observing Systems XXII, 104020W (19 September 2017); https://doi.org/10.1117/12.2276958

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