Continuous families of non-Hermitian surface solitons

Abstract

We show that surface solitons form continuous families in one-dimensional complex optical potentials of a certain shape. This result is illustrated by non-Hermitian gap-surface solitons at the interface between a uniform conservative medium and a complex periodic potential. Surface soliton families are parameterized by a real propagation constant. The range of possible propagation constants is constrained by the relation between the continuous spectrum of the uniform medium and the band-gap structure of the periodic potential.

arXiv comment5 pages, 5 figures; to appear in Optics Letters

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Cited by in corpus (1)

• Stability restoration by asymmetric nonlinear states in non-Hermitian double-well potentials