Inverse analysis of diffuse reflectance for surface-distributed particles using absorbance basis functions

S. G. Lambrakos; R. Furstenberg; C. Breshike; C. Kendziora; T. Huffman; R. A. McGill; A. Shabaev

doi:10.1117/12.2585105

12 April 2021 Inverse analysis of diffuse reflectance for surface-distributed particles using absorbance basis functions

S. G. Lambrakos, R. Furstenberg, C. Breshike, C. Kendziora, T. Huffman, R. A. McGill, A. Shabaev

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Proceedings Volume 11749, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXII; 117490W (2021) https://doi.org/10.1117/12.2585105
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

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Abstract

This study describes inverse spectral analysis of diffuse reflectance for surface-distributed material particles on substrates. In particular, an algorithm for extraction of target spectral features for surface-distributed materials of specified dielectric response. This algorithm is based on diffuse-reflectance theory and linear combinations of basis functions representing response characteristics of different types of scattering processes. The basis functions are constructed using absorbance functions and analytical models of Mie-type scattering. Prototype inverse spectral analysis of diffuse reflectance for surface-distributed explosive particles on substrates are described, which demonstrate characteristics of the algorithm.

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S. G. Lambrakos, R. Furstenberg, C. Breshike, C. Kendziora, T. Huffman, R. A. McGill, and A. Shabaev "Inverse analysis of diffuse reflectance for surface-distributed particles using absorbance basis functions", Proc. SPIE 11749, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXII, 117490W (12 April 2021); https://doi.org/10.1117/12.2585105

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