Abstract
We study a second harmonic generation interaction geometry in the case where both group velocity mismatch and walk-off have significant impacts. This results in a frequency-converted beam exhibiting a pulse front tilt. Using the global response function of the crystal, we provide an analytical model that allows to predict the spatiotemporal structure of the second harmonic wave packet and verify its validity using numerical simulations and a simple experiment. Distinctive features of this geometry are the suppression of back-conversion and the ability to conserve the fundamental bandwidth in space and time domains. Subsequent compensation of the pulse front tilt should allow efficient generation of ultrashort pulses in the deep ultraviolet.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Wenhua Su, Liejia Qian, Hang Luo, Xiquan Fu, Heyuan Zhu, Tao Wang, Kale Beckwitt, Yifan Chen, and Frank Wise
J. Opt. Soc. Am. B 23(1) 51-55 (2006)
Solomon M. Saltiel, Kaloian Koynov, Ben Agate, and Wilson Sibbett
J. Opt. Soc. Am. B 21(3) 591-598 (2004)
Zheng Zheng, Andrew M. Weiner, Krishnan R. Parameswaran, Ming-Hsien Chou, and Martin M. Fejer
J. Opt. Soc. Am. B 19(4) 839-848 (2002)