Open AccessTuning of a nonlinear THz emitter
Author(s) -
A. Andronico,
Silvia Mariani,
Filippo Ghiglieno,
Julien Claudon,
Mathieu Munsch,
JeanMichel Gèrard,
Iván Favero,
S. Ducci,
Giuseppe Leo
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.017678
Subject(s) - common emitter , terahertz radiation , optics , nonlinear system , nonlinear optics , energy conversion efficiency , optoelectronics , physics , materials science , laser , quantum mechanics
We numerically study a passive THz source based on difference frequency generation between modes sustained by cylindrical AlGaAs microcavities. We show that ring-like structures are advantageous in that they provide additional degrees of freedom for tuning the nonlinear process and for maximizing the nonlinear overlap integral and conversion efficiency.