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Defect solitons in triangular optical lattices |
JOSA B, Vol. 28, Issue 3, pp. 521-527 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000521
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Abstract
We report the existence and stability of solitons in triangular optical lattices with a defect in saturable nonlinearity. With the changes of defect intensity, defect solitons may exist in different gaps. For a positive defect, solitons only exist in the semi-infinite gap and can be stable in the low power region. For a negative defect, solitons can exist in the semi-infinite gap and in the first gap. With the increasing of the negative defect depth, solitons will be stable only in the moderate power region in the first gap, and the stable region will become more and more narrow.
© 2011 Optical Society of America
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 2, 2010
Revised Manuscript: December 12, 2010
Manuscript Accepted: December 24, 2010
Published: February 28, 2011
Citation
Xing Zhu, Hong Wang, Ting-Wan Wu, and Li-Xian Zheng, "Defect solitons in triangular optical lattices," J. Opt. Soc. Am. B 28, 521-527 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-3-521
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