Optical echo in photonic crystals

Details Optical echo in photonic crystals Optical echo in photonic crystals

2006-12-14

arxiv.org/abs/physics/0612149v1

JETP Lett. 85, 156 (2007)

Physics

Optics

4 pages

Scientific paper

10.1134/S0021364007030058

The dynamics of photonic wavepacket in the effective oscillator potential is studied. The oscillator potential is constructed on a base of one dimensional photonic crystal with a period of unit cell adiabatically varied in space. The structure has a locally equidistant discrete spectrum. This leads to an echo effect, i.e. the periodical reconstruction of the packet shape. The effect can be observed in a nonlinear response of the system. Numerical estimations for porous-silicon based structures are presented for femtosecond Ti:Sapphire laser pump.

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