TeraHertz waves have multiple applications for medical imaging, security, the non-destructive study of art objects, telecommunications, for quality control in industry … We have implemented a new method for reading periodic signals imprinted on a TeraHertz carrier. This method relies on an opto-mechanical resonator that converts TeraHertz signals into mechanical oscillations of a nano-lever. Thanks to the exceptional stability of these oscillations, we were able to probe and reconstruct the temporal shape of the TeraHertz envelope. These results appeared on the cover of the Applied Physics Letters journal from November 1st, 2021.

Un nano résonateur optomécanique qui convertit les ondes TeraHertz en oscillations mécaniques



Optomechanical temporal sampling of terahertz signals, Baptiste Chomet, Djamal Gacemi, Angela Vasanelli, Carlo Sirtori, Yanko Todorov. Appl. Phys. Lett. 119, 181103 (2021)
DOI: 10.1063/5.0068852

Author affiliation:
Laboratoire de physique de L’Ecole normale supérieure (LPENS, ENS Paris/CNRS/Sorbonne Université/Université de Paris)

Corresponding author: Yanko Todorov
Communication Contact: L’équipe de communication