Defect modes in optically induced photonic lattices in biased photovoltaic–photorefractive crystals

2012 ◽  
Vol 34 (8) ◽  
pp. 1277-1281 ◽  
Author(s):  
Keqing Lu ◽  
Jianbang Guo ◽  
Kehao Li ◽  
Weijun Chen ◽  
Tongtong Sun ◽  
...  
Keyword(s):  
Defect Modes ◽  
Photorefractive Crystals ◽  
Photonic Lattices ◽  
Optically Induced

Two-dimensional nonlinear optically induced photonic lattices in photorefractive crystals

2005 ◽  
Author(s):  
Anton S. Desyatnikov ◽  
Dragomir N. Neshev ◽  
Robert Fischer ◽  
Wieslaw Krolikowski ◽  
Nina Sagemerten ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Photorefractive Crystals ◽  
Photonic Lattices ◽  
Optically Induced

Properties of Defect Modes in One-Dimensional Optically Induced Photonic Lattices

2005 ◽  
Vol 115 (2) ◽  
pp. 279-301 ◽  
Author(s):  
Francesco Fedele ◽  
Jianke Yang ◽  
Zhigang Chen
Keyword(s):  
Defect Modes ◽  
One Dimensional ◽  
Photonic Lattices ◽  
Optically Induced

Observation of Defect Modes in Optically-induced Photonic Lattices

2005 ◽  
Author(s):  
Igor Makasyuk ◽  
Zhigang Chen ◽  
Francesco Fedele ◽  
Jianke Yang
Keyword(s):  
Defect Modes ◽  
Photonic Lattices ◽  
Optically Induced

scholarly journals Experiments on Linear and Nonlinear Localization of Optical Vortices in Optically Induced Photonic Lattices

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Daohong Song ◽  
Cibo Lou ◽  
Liqin Tang ◽  
Zhuoyi Ye ◽  
Jingjun Xu ◽  
...  
Keyword(s):  
Defect Modes ◽  
Discrete Vortex ◽  
Nonlinear Localization ◽  
Photonic Lattices ◽  
Vortex Solitons ◽  
Linear And Nonlinear ◽  
Singly Charged ◽  
Doubly Charged ◽  
Recent Experimental Work ◽  
Optically Induced

We provide a brief overview on our recent experimental work on linear and nonlinear localization of singly charged vortices (SCVs) and doubly charged vortices (DCVs) in two-dimensional optically induced photonic lattices. In the nonlinear case, vortex propagation at the lattice surface as well as inside the uniform square-shaped photonic lattices is considered. It is shown that, apart from the fundamental (semi-infinite gap) discrete vortex solitons demonstrated earlier, the SCVs can self-trap into stable gap vortex solitons under the normal four-site excitation with a self-defocusing nonlinearity, while the DCVs can be stable only under an eight-site excitation inside the photonic lattices. Moreover, the SCVs can also turn into stable surface vortex solitons under the four-site excitation at the surface of a semi-infinite photonics lattice with a self-focusing nonlinearity. In the linear case, bandgap guidance of both SCVs and DCVs in photonic lattices with a tunable negative defect is investigated. It is found that the SCVs can be guided at the negative defect as linear vortex defect modes, while the DCVs tend to turn into quadrupole-like defect modes provided that the defect strength is not too strong.

Defect solitons in optically induced kagome photonic lattices in photovoltaic–photorefractive crystals

2014 ◽  
Vol 312 ◽  
pp. 258-262 ◽  
Author(s):  
Shuqin Liu ◽  
Keqing Lu ◽  
Yiqi Zhang ◽  
Weijun Chen ◽  
Tianrun Feng ◽  
...  
Keyword(s):  
Photorefractive Crystals ◽  
Photonic Lattices ◽  
Optically Induced
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