We reveal the critical behavior of the fundamental defect mode, which can be supported by an optical lattice with a local defect in the nonlocal nonlinear medium. In such a system, there are several system parameters, and it is found that whether the fundamental defect mode can locate in the defect or not depends on the parameter value higher or lower than its critical value. Furthermore, the critical values of these parameters are predicted in this article.
© 2013 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: September 10, 2012
Revised Manuscript: December 6, 2012
Manuscript Accepted: December 6, 2012
Published: January 9, 2013
Huafeng Zhang, Desheng Zhu, Dahai Xu, Changmei Cai, Hui Zeng, and Yonghong Tian, "Critical behavior of nonlocal fundamental defect mode," J. Opt. Soc. Am. B 30, 319-323 (2013)