Ultra-short and ultra-intense X-ray free-electron laser single pulse in one-dimensional photonic crystals

Abstract : The propagation within a one-dimensional photonic crystal of a single ultra-short and ultra-intense pulse delivered by an X-ray free-electron laser is analysed with the framework of the time-dependent coupled-wave theory in non-linear media. It is shown that the reflection and the transmission of an ultra-short pulse present a transient period conditioned by the extinction length and also the thickness of the structure for transmission. For ultra-intense pulses, non-linear effects are expected: they could give rise to numerous phenomena, bi-stability, self-induced transparency, gap solitons, switching, etc., which have been previously shown in the optical domain.
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Jean-Michel André, Philippe Jonnard. Ultra-short and ultra-intense X-ray free-electron laser single pulse in one-dimensional photonic crystals. Journal of Synchrotron Radiation, International Union of Crystallography, 2017, 24 (2), pp.576-585. ⟨10.1107/S1600577517000820⟩. ⟨hal-01474782⟩

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