Time-dependent Bragg diffraction and short-pulse reflection by one-dimensional photonic crystals

Abstract : The time-­‐dependence of the Bragg diffraction by one-­‐dimensional photonic crystals and its influence on the short pulse reflection are studied in the framework of the coupled-­‐ wave theory. The indicial response of the photonic crystal is calculated and it appears that it presents a time-­‐delay effect with a transient time conditioned by the extinction length. A numerical simulation is presented for a Bragg mirror in the x-­‐ray domain and a pulse envelope modelled by a sine-­‐squared shape. The potential consequences of the time-­‐delay effect in time-­‐dependent optics of short-­‐pulses are emphasized .
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Submitted on : Monday, August 31, 2015 - 3:03:13 PM
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Jean-Michel André, Philippe Jonnard. Time-dependent Bragg diffraction and short-pulse reflection by one-dimensional photonic crystals. Journal of Optics, Institute of Physics (IOP), 2015, 17 (3), pp.085609. ⟨10.1088/2040-8978/17/8/085609⟩. ⟨hal-01114371v2⟩

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