Necklacelike solitons in optically induced photonic lattices.
Necklacelike solitons in optically induced photonic lattices.
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DOI：
10.1103/physrevlett.94.113902
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发表时间：
2005-03
影响因子：
8.6
通讯作者：
Jianke Yang;I. Makasyuk;P. Kevrekidis;H. Martin;B. Malomed;D. Frantzeskakis;Zhigang Chen;Zhigang Ch
中科院分区：
文献类型：
--
作者：
Jianke Yang;I. Makasyuk;P. Kevrekidis;H. Martin;B. Malomed;D. Frantzeskakis;Zhigang Chen;Zhigang Ch
我们首次观测到了静止的项链状孤子。这种项链结构是通过将高阶涡旋光束适当地入射到二维光诱导光子晶格中而实现的。用连续和离散模型得到的理论结果表明，由4电荷涡旋产生的项链孤子在相邻的“珍珠”之间具有π相位差，并形成八角形。确定了它们的稳定区域。
We report the first observation of stationary necklacelike solitons. Such necklace structures were realized when a high-order vortex beam was launched appropriately into a two-dimensional optically induced photonic lattice. Our theoretical results obtained with continuous and discrete models show that the necklace solitons resulting from a charge-4 vortex have a pi phase difference between adjacent "pearls" and are formed in an octagon shape. Their stability region is identified.