Physics – Optics
Scientific paper
2006-04-28
Opt. Express 14, 9873-9878 (2006)
Physics
Optics
4 pages, 3 figures
Scientific paper
10.1364/OE.14.009873
We study dynamical reshaping of polychromatic beams due to collective nonlinear self-action of multiple-frequency components in periodic photonic lattices and predict the formation of polychromatic discrete solitons facilitated by localization of light in spectral gaps. We show that the self-trapping efficiency and structure of emerging polychromatic gap solitons depends on the spectrum of input beams due to the lattice-enhanced dispersion, including the effect of crossover from localization to diffraction in media with defocusing nonlinearity.
Kivshar Yuri S.
Motzek Kristian
Sukhorukov Andrey A.
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