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arXiv · 1211.0256

Soliton-induced relativistic-scattering and amplification

E. Rubino·A. Lotti·F. Belgiorno·S. L. Cacciatori·A. Couairon·U. Leonhardt·D. Faccio
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Abstract

Solitons are of fundamental importance in photonics due to applications in optical data transmission and also as a tool for investigating novel phenomena ranging from light generation at new frequencies and wave-trapping to rogue waves. Solitons are also relativistic scatterers: they generate refractive-index perturbations moving at the speed of light. Here we found that such perturbations scatter light in an unusual way: they amplify light by the mixing of positive and negative frequencies, as we describe using a first Born approximation and numerical simulations. The simplest scenario in which these effects may be observed is within the initial stages of optical soliton propagation: a steep shock front develops that may efficiently scatter a second, weaker probe pulse into relatively intense positive and negative frequency modes with amplification at the expense of the soliton. Our results show a novel all-optical amplification scheme that relies on relativistic scattering.

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E. Rubino, A. Lotti, F. Belgiorno, S. L. Cacciatori, A. Couairon, U. Leonhardt, D. Faccio. 2012-11-01. Soliton-induced relativistic-scattering and amplification. https://arxiv.org/abs/1211.0256

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