Coherent And Non-Coherent Far Infrared Calibration

William L. Wolfe

doi:10.1117/12.954537

10 November 1975 Coherent And Non-Coherent Far Infrared Calibration

William L. Wolfe

Proceedings Volume 0067, Long-Wavelength Infrared; (1975) https://doi.org/10.1117/12.954537
Event: 19th Annual Technical Symposium, 1975, San Diego, United States

Abstract

Coherence in radiometry, or the radiometry of radiation in any state of coherence has had a short and checkered history. So short, in fact, that the very subject needs definition, elucidation, and bounds. In this article I would like to outline several specific areas in which coherence theory of some sort and radiometry come into contact. The twain meet and in several different ways. The first has to do with the noise equivalent power (NEP) of thermal and photon detectors. The second has to do with the theory of partial coherence and extended definitions of radiance, radiant emittance, radiant intensity, etc. The third deals with the conjunction of radar theory and the measurement of "coherent" returns from specific objects.

Citation Download Citation

William L. Wolfe "Coherent And Non-Coherent Far Infrared Calibration", Proc. SPIE 0067, Long-Wavelength Infrared, (10 November 1975); https://doi.org/10.1117/12.954537

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