Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements - Archive ouverte HAL
Article Dans Une Revue Sensors Année : 2023

Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements

Résumé

Diffuse reflectance spectroscopy (DRS) has proven to be a powerful, reliable, and non-invasive optical method for characterizing a specimen. Nevertheless, these methods are based on a rudimentary interpretation of the spectral response and can be irrelevant to understanding 3D structures. In this work, we proposed adding optical modalities into a customized handheld probe head in order to increase the number of parameters in DRS acquired from the light/matter interaction. It consists of (1) placing the sample in a reflectance manual rotation stage to collect spectral backscattered angularly resolved light and (2) illuminating it with two sequential linear polarization orientations. We demonstrate that this innovative approach leads to a compact instrument, capable of performing fast polarization-resolved spectroscopic analysis. Due to the significant amount of data available with this technique in a short time, we observe sensitive quantitative discrimination between two types of biological tissue provided by a raw rabbit leg. We believe that this technique can pave the way for rapid meat quality check or biomedical diagnosis of pathological tissues in situ at an early stage.
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hal-04076097 , version 1 (20-04-2023)

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Letizia Fede, Grégory Lefrère, Maroun Hjeij, Ronan Le Page, Luiz Poffo, et al.. Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements. Sensors, 2023, 23 (6), pp.2911. ⟨10.3390/s23062911⟩. ⟨hal-04076097⟩
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