Abstract

We propose a method to realize perfect quasi-phase matching (QPM) for nonlinear optical interactions involving Gaussian beams. Using this method, both the wave-vector mismatching and the Gouy phase shift can be compensated. Numerical simulations for the third-harmonic generation show that conversion efficiency near to 100% can be realized even if the fundamental wave is tightly focused, which is difficult or even impossible with the conventional QPM method.

© 2008 Optical Society of America

Third-harmonic generation by use of focused Gaussian beams in an optical superlattice

Guo-Ding Xu, Tie-Wei Ren, Yue-Hua Wang, Yong-Yuan Zhu, Shi-Ning Zhu, and Nai-Ben Ming
J. Opt. Soc. Am. B 20(2) 360-365 (2003)

Second-harmonic generation of single-mode Laguerre-Gaussian beams with an improved quasi-phase-matching method

Ruizhi Zhao, Yaguang Xu, Ronger Lu, Yongchuang Chen, Jincheng Zou, Xuhao Hong, Xudong Yuan, Yibing Ma, Xia Feng, Chao Zhang, Yiqiang Qin, and Yongyuan Zhu
Opt. Express 28(26) 39241-39249 (2020)

Group-velocity-mismatch compensation in cascaded third-harmonic generation with two-dimensional quasi-phase-matching gratings

Nobuhide Fujioka, Satoshi Ashihara, Hidenobu Ono, Tsutomu Shimura, and Kazuo Kuroda
Opt. Lett. 31(18) 2780-2782 (2006)

Third-harmonic generation in quasi-phase-matched χ⁽²⁾ media with missing second harmonic

Stefano Longhi
Opt. Lett. 32(13) 1791-1793 (2007)

Cascaded third-harmonic generation of ultrashort optical pulses in two-dimensional quasi-phase-matching gratings

Nobuhide Fujioka, Satoshi Ashihara, Hidenobu Ono, Tsutomu Shimura, and Kazuo Kuroda
J. Opt. Soc. Am. B 24(9) 2394-2405 (2007)