Azimuthons: spatially modulated vortex solitons.
Azimuthons: spatially modulated vortex solitons.
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DOI：
10.1103/physrevlett.95.203904
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发表时间：
2005-11
影响因子：
8.6
通讯作者：
A. Desyatnikov;A. Sukhorukov;Y. Kivshar
中科院分区：
文献类型：
--
作者：
A. Desyatnikov;A. Sukhorukov;Y. Kivshar
介绍了一类新的空间局域自陷环形奇异光束，即所谓的方位角孤子，它是由于涡旋孤子的方位角连续变形而产生的。我们证明了方位角是由两个独立的整数指标，拓扑电荷m和强度峰的数量N沿沿着环。每个孤子族包括负、正和零角速度的方位角。
We introduce a novel class of spatially localized self-trapped ringlike singular optical beams in nonlinear media, the so-called azimuthons, which appear due to a continuous azimuthal deformation of vortex solitons. We demonstrate that the azimuthons are characterized by two independent integer indices, the topological charge m and the number N of the intensity peaks along the ring. Each soliton family includes azimuthons with negative, positive, and zero angular velocity.