Vortex-induced rotating structures in optical photonic lattices.
Vortex-induced rotating structures in optical photonic lattices.
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DOI：
10.1364/oe.14.009415
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发表时间：
2006-10
期刊：
影响因子：
3.8
通讯作者：
M. Petrović
中科院分区：
文献类型：
--
作者：
M. Petrović
用数值方法研究了光诱导固定光子晶格中互非相干自困涡旋光束的旋转特性。考虑了不同的晶格结构，如六边形/三角形和圆形光子晶格。在六方光子晶格中，周期性地增加传输距离，可以观察到涡旋丝的规则非局域旋转。对于具有负缺陷的圆形光子晶格，我们发现了在没有晶格的情况下没有对应物的新型旋转光束结构。观察到的旋转结构在噪声存在下是稳定的。
Rotational properties of counterpropagating mutually incoherent self-trapped vortex beams in optically induced fixed photonic lattices are investigated numerically. Different lattice structures are considered, such as hexagonal/trigonal and circular photonic lattices. Periodically increasing propagation distance, regular nonlocal rotation of vortex filaments is observed for hexagonal photonic lattice. For circular photonic lattices with negative defect, we discover novel types of rotating beam structures that have no counterparts in the case without the lattice. Observed rotating structures are stable in the presence of noise.