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Scattering of linear and nonlinear waves in a waveguide array with a PT -symmetric defect

Dmitriev, Sergey V; Suchkov, Sergey V; Sukhorukov, Andrey; Kivshar, Yuri


We study the scattering of linear and nonlinear waves in a long waveguide array with a parity-time (PT)-symmetric defect created by two waveguides with balanced gain and loss. We present exact solutions for the scattering of linear waves on such a defect, and then demonstrate numerically that the linear theory can describe, with a good accuracy, the soliton scattering in the case of weak nonlinearity. We reveal that the reflected and transmitted linear and nonlinear waves can be amplified...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.84.013833
Access Rights: Open Access


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