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Terahertz probing of sunflower leaf multilayer organization

Abstract : We analyze the multilayer structure of sunflower leaves from Terahertz data measured in the time-domain at a ps scale. Thin film reverse engineering techniques are applied to the Fourier amplitude of the reflected and transmitted signals in the frequency range f < 1.5 Terahertz (THz). Validation is first performed with success on etalon samples. The optimal structure of the leaf is found to be a 8-layer stack, in good agreement with microscopy investigations. Results may open the door to a complementary classification of leaves.
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https://hal.inrae.fr/hal-03016956
Contributor : Isabelle Nault <>
Submitted on : Friday, November 20, 2020 - 4:15:36 PM
Last modification on : Saturday, November 21, 2020 - 3:29:33 AM

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Yannick Abautret, Dominique Coquillat, Myriam Zerrad, Xavier Buet, Ryad Bendoula, et al.. Terahertz probing of sunflower leaf multilayer organization. Optics Express, Optical Society of America - OSA Publishing, 2020, 28 (23), pp.35018-35037. ⟨10.1364/OE.400852⟩. ⟨hal-03016956⟩

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