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Volume 23
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10.3390/s23062911
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Article

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

by
Letizia Fede
1,2,
Gregory Lefrere
2,3,
Maroun Hjeij
2,
Ronan Le Page
2,
Luiz Poffo
2,
Jean-Marc Goujon
2 and
Aymeric Le Gratiet
2,*
1
Politecnico di Milano, 20133 Milano, Italy
2
CNRS, Institut FOTON, Université de Rennes, UMR 6082, F-22305 Lannion, France
3
CEA-Gramat, F-46500 Gramat, France
*
Author to whom correspondence should be addressed.
Sensors 2023, 23(6), 2911; https://doi.org/10.3390/s23062911
Submission received: 3 February 2023 / Revised: 28 February 2023 / Accepted: 4 March 2023 / Published: 7 March 2023
(This article belongs to the Special Issue Imaging and Sensing in Optics and Photonics)
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Abstract

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.
Keywords: diffuse reflectance spectroscopy; near-IR; non-invasive; tissue; polarization; fiber optics diffuse reflectance spectroscopy; near-IR; non-invasive; tissue; polarization; fiber optics

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MDPI and ACS Style

Fede, L.; Lefrere, G.; Hjeij, M.; Le Page, R.; Poffo, L.; Goujon, J.-M.; Gratiet, A.L. Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements. Sensors 2023, 23, 2911. https://doi.org/10.3390/s23062911

AMA Style

Fede L, Lefrere G, Hjeij M, Le Page R, Poffo L, Goujon J-M, Gratiet AL. Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements. Sensors. 2023; 23(6):2911. https://doi.org/10.3390/s23062911

Chicago/Turabian Style

Fede, Letizia, Gregory Lefrere, Maroun Hjeij, Ronan Le Page, Luiz Poffo, Jean-Marc Goujon, and Aymeric Le Gratiet. 2023. "Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements" Sensors 23, no. 6: 2911. https://doi.org/10.3390/s23062911

APA Style

Fede, L., Lefrere, G., Hjeij, M., Le Page, R., Poffo, L., Goujon, J.-M., & Gratiet, A. L. (2023). Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements. Sensors, 23(6), 2911. https://doi.org/10.3390/s23062911

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