14 March 2013 Laser pulse propagation in relativistically time-dependent media
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Nonlinear optics and, in general, the interaction of light with matter is usually studied in the context of a stationary medium that does not change in time or changes slowly on the time scale of the optical frequency cycle. However, there are a number of interesting effects that arise when the medium is allowed to change at very rapid rates. We first discuss the recent experimental discovery of a new kind of resonant radiation emission from laser pulse shock fronts and consider its main features in terms of a possible route to investigate light scattering from a relativistically moving scatterer. As a second example we consider the case of a periodically changing medium: such a situation bears a close resemblance to the dynamical Casimir effect.
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D. Faccio, D. Faccio, E. Rubino, E. Rubino, A. Couairon, A. Couairon, F. Belgiorno, F. Belgiorno, F. Dalla Piazza, F. Dalla Piazza, S. L. Cacciatori, S. L. Cacciatori, } "Laser pulse propagation in relativistically time-dependent media", Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 862319 (14 March 2013); doi: 10.1117/12.2006536; https://doi.org/10.1117/12.2006536

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