Abstract

We argue for a different physical interpretation of the results given in the recent Letter by Chvykov et al. [Opt. Lett. 31 , 1456 (2006)] in which a double nonlinear crystal scheme for cross-polarized wave generation is analyzed. We discuss the most important factors that explain the origin of the two-crystal scheme’s increased efficiency, namely, the Kerr lensing effect and a Gouy phase shift. The position and orientation of the second crystal relative to the first one are unambiguously defined; related effects are illustrated by already published works on the subject.

© 2006 Optical Society of America

Reply to Comment on "Generation of 10¹¹ contrast 50 TW laser pulses"

V. Chvykov, P. Rousseau, S. Reed, G. Kalinchenko, and V. Yanovsky
Opt. Lett. 31(20) 2993-2994 (2006)

Generation of 10¹¹ contrast 50 TW laser pulses

V. Chvykov, P. Rousseau, S. Reed, G. Kalinchenko, and V. Yanovsky
Opt. Lett. 31(10) 1456-1458 (2006)

Two crystal arrangement to fight efficiency saturation in cross-polarized wave generation

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Comment on "Direct observation of laser filamentation in high-order harmonic generation"

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Nonlinear mirror based on cross-polarized wave generation

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