Retrieving material and metamaterial parameters directly from time-domain spectroscopy time trace

Romain Peretti (1, 2) , Sergey I. Mitryukovskiy (1, 2) , Kevin Froberger (1, 2) , Jean-Francois Lampin (1, 2)

1 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
2 PHOTONIQUE THZ - IEMN - Photonique THz - IEMN

Abstract: We present the Fit@TDS software that enables the retrieving of the refractive index from a time-domain spectroscopy experiment. The software does not only use common methods of frequency-domain refractive index retrieving but also include a time-domain optimization algorithm that enables fitting directly the material parameters using of the Drude-Lorentz model or meta materials through the time-domain couple mode theory.

Mots clés: Time-domain analysis; Spectroscopy; Metamaterials; Refractive index; Software; Time-frequency analysis; Data models

Domaines: Biophysique [physics.bio-ph]; Optique [physics.optics]; Optique / photonique

Romain Peretti, Sergey I. Mitryukovskiy, Kevin Froberger, Jean-Francois Lampin. Retrieving material and metamaterial parameters directly from time-domain spectroscopy time trace. 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2018), Sep 2018, Nagoya, Japan. pp.1-2, ⟨10.1109/IRMMW-THz.2018.8510300⟩. ⟨hal-02334949⟩