Universal charts for optical difference frequency generation in the terahertz domain
Optics
2010-03-26 v2
Abstract
We present a universal and rigorous approach to study difference frequency generation in the terahertz domain, keeping the number of degrees of freedom to a minimum, through the definition of a suitable figure of merit. The proposed method relies on suitably normalized charts, that enable to predict the optical-to-terahertz conversion efficiency of any system based on wave propagation in quadratic nonlinear materials. The predictions of our approach are found to be in good agreement with the best experimental results reported to date, enabling also to estimate the d22 nonlinear coefficient of high quality GaSe.
Cite
@article{arxiv.0906.3697,
title = {Universal charts for optical difference frequency generation in the terahertz domain},
author = {Matteo Cherchi and Saverio Bivona and Alfonso C. Cino and Alessandro C. Busacca and Roberto L. Oliveri},
journal= {arXiv preprint arXiv:0906.3697},
year = {2010}
}
Comments
3 pages in 2 columns format, 3 figures. GaSe analysis has been corrected. Fig. 3 has been replaced