Document Type
Article
Department
Physics (HMC)
Publication Date
1-2003
Abstract
By numerically solving the nonlinear field equations, we simulate second-harmonic generation by laser pulses within a nonlinear medium without making the usual slowly-varying-amplitude approximation, an approximation which may fail when laser pulses of moderate intensity or ultrashort duration are used to drive a nonlinear process. Under these conditions we show that a backward-traveling, second-harmonic wave is created, and that the magnitude of this wave is indicative of the breakdown of the slowly-varying-amplitude approximation. Conditions necessary for experimental detection of this wave are discussed.
Rights Information
© 2003 Optical Society of America
Terms of Use & License Information
DOI
10.1364/JOSAB.20.000152
Recommended Citation
J. Z. Sanborn, C. Hellings, T. D. Donnelly, "Breakdown of the slowly varying amplitude approximation: generation of backward traveling second harmonic light," J. Opt. Soc. A. B, 20, 152-157 (2003). doi: 10.1364/JOSAB.20.000152
Comments
This paper was published in the Journal of the Optical Society of America B and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/JOSAB.20.000152. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.