Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities
Optics
2016-12-19 v1
Abstract
We investigate the generation of ultraviolet (UV) second-harmonic radiation on the boundary of a UV transparent crystal, which is derived from the automatic partial phase matching of the incident wave and the total internal reflection. By adhering to another UV non-transparency crystal with larger second-order nonlinear coefficient \chi^{(2)}, an nonlinear interface with large disparity in \chi^{(2)} is formed and the enhancement of UV second-harmonic radiation is observed experimentally. The intensity of enhanced second harmonic wave generated at the nonlinear interface was up to 11.6 times at the crystal boundary. As a tunable phase-matching method, it may suggest potential applications in the UV, even vacuum-UV, spectral region.
Keywords
Cite
@article{arxiv.1612.05376,
title = {Enhancement of UV Second-Harmonic Radiation at Nonlinear Interfaces with Discontinuous Second-order Susceptibilities},
author = {Xiaohui Zhao and Yuanlin Zheng and Huaijin Ren and Ning An and Xuewei Deng and Xianfeng Chen},
journal= {arXiv preprint arXiv:1612.05376},
year = {2016}
}