Investigation of Surface Preparations to Enhance Photon Doppler Velocimetry Measurements

Report No. ARL-TR-7368
Authors: Michael B Zellner; Chester A Benjamin; Robert W Borys Sr; Ronald Cantrell; Kennith W Dudeck; Nathan J Sturgill; Corey E Yonce
Date/Pages: August 2015; 72 pages
Abstract: The work described in this report compiles empirical measurements of the intensity of 1.55-µm light reflected from numerous materials prepared with varying surface finishes over a range of incident and detection angles. The data are desired to construct a guide for conducting Photon Doppler Velocimetry measurements, which necessitates a prediction of the intensity of Doppler shifted light that will be reflected from a surface to optimize the measurement. It was found that the intensity of reflected light could be sufficiently explained using the law of reflection coupled with a coefficient of reflection that is specific to the material. It also provides a technique for empirically measuring the latter.
Distribution: Approved for public release
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Last Update / Reviewed: August 1, 2015