M. Petev, N. Westerberg, D. Moss, E. Rubino, C. Rimoldi, S. L. Cacciatori, F. Belgiorno, D. Faccio
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 properties and interaction of light with such laser-induced flowing media, fully accounting for the medium dispersion properties. A first Born approximation scattering model is found to be in excellent agreement with numerical simulations based on Maxwell's equations. Diamond is proposed as a promising candidate medium for future studies of Hawking emission from artificial, dispersive horizons.
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http://arxiv.org/abs/1303.5967
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