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.

Code and data availability

The supplied blocks contain no public phenotype/trait datasets, plant images, sensor data files, author analysis code, or trained models. The paper describes THz-TDS measurements of sunflower leaves and a Matlab-implemented RET algorithm, but no data or code availability statement, repository, or public URL for these资产

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