- Terahertz probing of sunflower leaf multilayer organization doi link

Auteur(s): Abautret Yannick, Coquillat D., Zerrad Myriam, Buet Xavier, Bendoula Ryad, Soriano Gabriel, Brouilly Nicolas, HERAN Daphné, Grezes-Besset Bruno, Chazallet Frédéric, Amra Claude

(Article) Publié: Optics Express, vol. 28 p.35018-35037 (2020)

Ref HAL: hal-03016956_v1
PMID 33182957
DOI: 10.1364/OE.400852
Exporter : BibTex | endNote

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.