Optical Kerr nonlinearity and multi-photon absorption of DSTMS measured by Z-scan method
Optics
2021-09-01 v2
Abstract
We investigate the optical Kerr nonlinearity and multi-photon absorption (MPA) properties of DSTMS excited by femtosecond pulses at a wavelengths of 1.43 {\mu}m, which is optimal for terahertz generation via difference frequency mixing. The MPA and the optical Kerr coefficients of DSTMS at 1.43 {\mu}m are strongly anisotropic indicating a dominating contribution from cascaded 2nd-order nonlinearity. These results suggest that the saturation of the THz generation efficiency is mainly related to the MPA process and to a spectral broadening caused by cascaded 2nd-order frequency mixing within DSTMS
Keywords
Cite
@article{arxiv.2102.03242,
title = {Optical Kerr nonlinearity and multi-photon absorption of DSTMS measured by Z-scan method},
author = {Jiang Li and Rakesh Rana and Liguo Zhu and Cangli Liu and Harald Schneider and Alexej Pashkin},
journal= {arXiv preprint arXiv:2102.03242},
year = {2021}
}
Comments
5pages, 4 figures