Comment on "Saturation of the All-Optical Kerr Effect"
Optics
2011-11-22 v1 Atomic Physics
Plasma Physics
Abstract
Br\'ee, Demircan, and Steinmeyer [Phys. Rev. Lett. 106, 183902 (2011)] recently calculated higher-order Kerr effect (HOKE) coefficients using the nonlinear Kramers-Kronig relations. We show that the saturated and negative nonlinear index of refraction obtained by Br\'ee et al. is an artifact of their use of a perturbative theory of ionization in an intensity region where it breaks down.
Keywords
Cite
@article{arxiv.1111.4932,
title = {Comment on "Saturation of the All-Optical Kerr Effect"},
author = {J. K. Wahlstrand and H. M. Milchberg},
journal= {arXiv preprint arXiv:1111.4932},
year = {2011}
}
Comments
2 pages, 1 figure