Abautret, Yannick, Dominique Coquillat, Myriam Zerrad, Xavier Buet, Ryad Bendoula, Gabriel Soriano, Nicolas Brouilly et al. "Terahertz probing of sunflower leaf multilayer organization." Optics Express 28, no. 23 (2020): 35018-35037.
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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| Sunflower (c) TeraView Limited |
for full paper see https://www.osapublishing.org/DirectPDFAccess/6ADBE498-5E73-4C39-AAEDFBD79986C4ED_442301/oe-28-23-35018.pdf?da=1&id=442301&seq=0&mobile=no
They used a TeraPulse 4000 for their research.
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