Observation of second-band vortex solitons in 2D photonic lattices

被引:83
作者
Bartal, G [1 ]
Manela, O
Cohen, O
Fleischer, JW
Segev, M
机构
[1] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
关键词
D O I
10.1103/PhysRevLett.95.053904
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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.
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页数:4
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