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Journal Articles Optics Express Year : 2020

Terahertz probing of sunflower leaf multilayer organization

Yannick Abautret
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Dominique Coquillat
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Myriam Zerrad
Xavier Buet
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Gabriel Soriano
Bruno Grezes-Besset
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Claude Amra

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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Dates and versions

hal-03016956 , version 1 (17-12-2020)

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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, 2020, 28 (23), pp.35018-35037. ⟨10.1364/OE.400852⟩. ⟨hal-03016956⟩
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