Observation of second-band vortex solitons in 2D photonic lattices.
Observation of second-band vortex solitons in 2D photonic lattices.
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DOI:
10.1103/physrevlett.95.053904
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发表时间:
2005-03
影响因子:
8.6
通讯作者:
G. Bartal;O. Manela;O. Cohen;J. Fleischer;M. Segev
中科院分区:
文献类型:
--
作者:
G. Bartal;O. Manela;O. Cohen;J. Fleischer;M. Segev
We demonstrate second-band bright vortex-array solitons in photonic lattices. This constitutes the first experimental observation of higher-band solitons in any 2D periodic system. These solitons possess complex intensity and phase structures, yet they can be excited by a simple highly localized vortex-ring beam. Finally, we show that the linear diffraction of such beams exhibits preferential transport along the lattice axes.