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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 20786–20792

Defect solitons in kagome optical lattices

Xing Zhu, Hong Wang, and Li-Xian Zheng  »View Author Affiliations


Optics Express, Vol. 18, Issue 20, pp. 20786-20792 (2010)
http://dx.doi.org/10.1364/OE.18.020786


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Abstract

We report the existence and stability of solitons in kagome optical lattices with a defect in photorefractive crystal under focusing saturable nonlinearity. For different types of defects, solitons will exist in different gaps. For a positive defect, the solitons only exist in the semi-infinite gap and only stably exist in the low power region. For a negative defect, the solitons exist both in the semi-infinite gap and the first gap. With an increasing of the negative defect depth, the stable region in the semi-infinite will be narrowed, while solitons will be firstly unstable in the high power region of the first gap, and finally solitons will be not stable in the whole first gap.

© 2010 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 11, 2010
Revised Manuscript: September 6, 2010
Manuscript Accepted: September 6, 2010
Published: September 15, 2010

Citation
Xing Zhu, Hong Wang, and Li-Xian Zheng, "Defect solitons in kagome optical lattices," Opt. Express 18, 20786-20792 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-20-20786


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