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arXiv · 1303.5967

Blackbody emission from light interacting with an effective moving dispersive medium

M. Petev·N. Westerberg·D. Moss·E. Rubino·C. Rimoldi·S. L. Cacciatori·F. Belgiorno·D. Faccio
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Abstract

Intense laser pulses excite a nonlinear polarisation response that may create an effective flowing medium and, under appropriate conditions, a blocking horizon for light. Here we analyse in detail the interaction of light with such laser-induced flowing media, fully accounting for the medium dispersion properties. An analytical model based on a first Born-approximation is found to be in excellent agreement with numerical simulations based on Maxwell's equations and shows that when a blocking horizon is formed, the stimulated medium scatters light with a blackbody emission spectrum. Based on these results, diamond is proposed as a promising candidate medium for future studies of Hawking emission from artificial, dispersive horizons.

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M. Petev, N. Westerberg, D. Moss, E. Rubino, C. Rimoldi, S. L. Cacciatori, F. Belgiorno, D. Faccio. 2013-03-24. Blackbody emission from light interacting with an effective moving dispersive medium. https://doi.org/10.1103/physrevlett.111.043902

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