Abautret, Yannick, Dominique Coquillat, Myriam Zerrad, Ryad Bendoula, Gabriel Soriano, Daphné Héran, Bruno Grèzes-Besset, Frédéric Chazallet, and Claude Amra. "Optical thickness of a plant leaf measured with THz pulse echoes." In Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII, vol. 11279, p. 112790L. International Society for Optics and Photonics, 2020.
Abstract
We analyze Terahertz (THz) echoes by reflection on a sunflower leaf in order to evaluate the internal leaf structure (geometry, complex indices and thicknesses). The analysis is based on the thin film multilayer formalism in time and frequency domains. A high agreement is emphasized between experiment and theory, and we evaluate how realistic the multilayer solution can be in regard to our knowledge related to the sunflower leaf. A test campaign is performed in Charles Coulomb laboratory, which is equipped with the THz spectrometer.
for full paper see https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11279/112790L/Optical-thickness-of-a-plant-leaf-measured-with-THz-pulse/10.1117/12.2543710.short?SSO=1
Experimental
… 2.1 Terahertz Time Domain Spectroscopy (TTDS) In this study we
performed the measurements campaign on a Terapulse 4000 spectrometer (TeraView Ltd., Cambridge, UK) with a femto-second fibre laser light source and a …
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