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Self-trapping of optical vortices at the surface of an induced semi-infinite photonic lattice
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Song, Daohong, Lou, Cibo, Law, K. J. H., Tang, Liqin, Ye, Zhuoyi, Kevrekidis, P.G., Xu, Jingjun and Chen, Zhigang (2010) Self-trapping of optical vortices at the surface of an induced semi-infinite photonic lattice. Optics Express, Vol.18 (No.6). Article no. 5873. doi:10.1364/OE.18.005873 ISSN 1094-4087.
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Official URL: http://dx.doi.org/10.1364/OE.18.005873
Abstract
We demonstrate self-trapping of singly-charged vortices at the surface of an optically induced two-dimensional photonic lattice. Under appropriate conditions of self-focusing nonlinearity, a singly-charged vortex beam can self-trap into a stable semi-infinite gap surface vortex soliton through a four-site excitation. However, a single-site excitation leads to a quasi-localized state in the first photonic gap, and our theoretical analysis illustrates that such a bandgap surface vortex soliton is always unstable. Our experimental results of stable and unstable topological surface solitons are corroborated by direct numerical simulations and linear stability analysis.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Journal or Publication Title: | Optics Express | ||||
Publisher: | Optical Society of America | ||||
ISSN: | 1094-4087 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | Vol.18 | ||||
Number: | No.6 | ||||
Page Range: | Article no. 5873 | ||||
DOI: | 10.1364/OE.18.005873 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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