Negative-frequency dispersive wave generation in quadratic media

Conforti, M., Westerberg, N. , Baronio, F., Trillo, S. and Faccio, D. (2013) Negative-frequency dispersive wave generation in quadratic media. Physical Review A: Atomic, Molecular and Optical Physics, 88(1), 013829. (doi: 10.1103/PhysRevA.88.013829)

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We show that the extremely blueshifted dispersive wave emitted in Kerr media owing to the coupling with the negative-frequency branch [E. Rubino et al., Phys. Rev. Lett. 108, 253901 (2012)] can be observed in quadratic media via second-harmonic generation. Not only is such a phenomenon thus independent of 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 vice versa undergoes wave breaking. A simple unified formula gives the frequencies of the emitted dispersive waves in both cases.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Faccio, Professor Daniele and Westerberg, Dr Niclas
Authors: Conforti, M., Westerberg, N., Baronio, F., Trillo, S., and Faccio, D.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review A: Atomic, Molecular and Optical Physics
Publisher:American Physical Society
ISSN (Online):1094-1622
Published Online:19 July 2013

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