Differential pulsed photothermal radiometry for remote detection of surface contamination

David V. Willetts; Guy N. Pearson; Michael Harris; S. Clement; S. Gandhi; P. Jeffery

doi:10.1117/12.317645

6 August 1998 Differential pulsed photothermal radiometry for remote detection of surface contamination

David V. Willetts, Guy N. Pearson, Michael Harris, S. Clement, S. Gandhi, P. Jeffery

Proceedings Volume 3383, Electro-Optical Technology for Remote Chemical Detection and Identification III; (1998) https://doi.org/10.1117/12.317645
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

The phenomenon of thermal emission form non-volatile liquid surface coatings following pulsed laser heating has been experimentally and theoretically studied with a view to developing a differential thermal imaging scheme for the remote detection of contaminated surfaces. Pulsed UV and IR laser sources have been used to generate radiance profiles from contaminants which are correlated with their characteristic spectra. Data from experiments and numerical simulations are compared and a reasonable level of agreement is demonstrated.

Citation Download Citation

David V. Willetts, Guy N. Pearson, Michael Harris, S. Clement, S. Gandhi, and P. Jeffery "Differential pulsed photothermal radiometry for remote detection of surface contamination", Proc. SPIE 3383, Electro-Optical Technology for Remote Chemical Detection and Identification III, (6 August 1998); https://doi.org/10.1117/12.317645

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