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
G. Bartal;O. Manela;O. Cohen;J. Fleischer;M. Segev
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
G. Bartal;O. Manela;O. Cohen;J. Fleischer;M. Segev

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我们研究了光子晶格中的二阶亮涡旋孤子。这是首次在任何二维周期系统中对高波段孤子进行实验观测。这些孤子具有复杂的强度和相位结构,但它们可以被一个简单的高度局域化的涡环光束激发。最后,我们表明,这种光束的线性衍射表现出优先传输沿着晶格轴。
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.