Bow-Tie Cavity for Terahertz Radiation
Optics
2020-04-20 v1
Abstract
We report on the development, testing, and performance analysis of a bow-tie resonant cavity for terahertz (THz) radiation, injected with a continuous-wave 2.55 THz quantum cascade laser. The bow-tie cavity employs a wire-grid polarizer as input/output coupler and a pair of copper spherical mirrors coated with an unprotected 500 nm thick gold layer. The improvements with respect to previous setups have led to a measured finesse value F=123, and a quality factor Q = 5.1x10^5. The resonator performances and the relevant parameters are theoretically predicted and discussed, and a comparison among simulated and experimental spectra is given.
Cite
@article{arxiv.1904.13143,
title = {Bow-Tie Cavity for Terahertz Radiation},
author = {Luigi Consolino and Annamaria Campa and Davide Mazzotti and Miriam Serena Vitiello and Paolo De Natale and Saverio Bartalini},
journal= {arXiv preprint arXiv:1904.13143},
year = {2020}
}