Analytical model of diffuse reflectance for NIR-SWIR absorbing-dye
 formulations using reduced absorbance functions

R. Viger; S. Ramsey; T. Mayo; S. G. Lambrakos

doi:10.1117/12.2659075

15 June 2023 Analytical model of diffuse reflectance for NIR-SWIR absorbing-dye formulations using reduced absorbance functions

R. Viger, S. Ramsey, T. Mayo, S. G. Lambrakos

Author Affiliations +

Proceedings Volume 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X; 125140C (2023) https://doi.org/10.1117/12.2659075
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

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Abstract

This study describes a parametric model of diffuse reflectance, based on reduction of absorption spectra for NIR-SWIR absorbing dyes on substrates, using critical feature isolation and projection. The critical features are identified through a structural analysis of the peaks, troughs, and points of inflection in the calculated Kubelka-Munk absorption spectra from diffuse reflectance measurements. These features are then parameterized and projected into a reduced feature subspace to effectively capture the fundamental characteristics of the absorbing dyes. The parametric model is structured for combination with effective-medium models of mixtures and deposit-on-substrate micro or meso structure

Citation Download Citation

R. Viger, S. Ramsey, T. Mayo, and S. G. Lambrakos "Analytical model of diffuse reflectance for NIR-SWIR absorbing-dye formulations using reduced absorbance functions", Proc. SPIE 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X, 125140C (15 June 2023); https://doi.org/10.1117/12.2659075

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