Physics – Optics
Scientific paper
2007-09-13
Phys. Rev. Lett. 101, 013601 (2008)
Physics
Optics
5 pages, 6 figures
Scientific paper
10.1103/PhysRevLett.101.013601
The nonlinear propagation of 3D wave-packets in a 1D Bragg-induced band-gap system, shows that tranverse effects (free space diffraction) affect the interplay of periodicity and nonlinearity, leading to the spontaneous formation of fast and slow conical localized waves. Such excitation corresponds to enhanced nonlinear transmission (tunneling) in the gap, with peculiar features which differ on the two edges of the band-gap, as dictated by the full dispersion relationship of the localized waves.
Conti Claudio
Di Falco Andrea
Trillo Stefano
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