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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1998),
  • paper QWF1

Nonlinear solitary waves in two-and three-dimensional resonant periodic structures

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Abstract

The study of the nonlinear interactions in periodic structures has gained considerable interest in the past few years.1 This is due to the finding of the novel kind of nonlinear solitary waves that are propagated at Bragg frequency within the linear forbidden gap band of the periodic medium. It has been shown that gap solitons and oscillating solitary waves exist in one-dimensional structures with resonant2 and Kerr3 nonlinearity. These waves are formed by two counterpropagating coupled Bragg modes. Here we investigate theoretically the dynamics of formation and propagation of nonlinear solitary waves in the general case of two-wave diffraction problem in two-and three-dimensional periodic resonant structures. The vector Bragg condition kh = k0 + H for the wave vectors k0 and kh of the incident and diffracted waves and the reciprocal lattice vector H is to be satisfied in this problem.

© 1998 Optical Society of America

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