Negative-frequency dispersive wave generation in quadratic media
Optics
2013-08-09 v1 Pattern Formation and Solitons
Abstract
We show that the extremely blue-shifted dispersive wave emitted in Kerr media owing to the coupling with the negative-frequency branch [Phys. Rev. Lett. {\bf 108}, 253901 (2012)] can be observed in quadratic media via second-harmonic generation. Not only such phenomenon is thus independent on the specific nonlinear mechanism, but it is shown to occur regardless of the fact that the process is pumped by a pulse which exhibits soliton-like features or, viceversa, undergoes wave-breaking. A simple unified formula gives the frequencies of the emitted dispersive waves in both cases.
Cite
@article{arxiv.1305.3378,
title = {Negative-frequency dispersive wave generation in quadratic media},
author = {Matteo Conforti and Niclas Westerberg and Fabio Baronio and Stefano Trillo and Daniele Faccio},
journal= {arXiv preprint arXiv:1305.3378},
year = {2013}
}