Nonlocality in PT -symmetric waveguide arrays with gain and loss
Date
2012
Authors
Dmitriev, Sergey V
Suchkov, Sergey V
Sukhorukov, Andrey
Kivshar, Yuri
Journal Title
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Volume Title
Publisher
Optical Society of America
Abstract
We demonstrate that light propagation in waveguide arrays that include PT -symmetric structures can exhibit strongly nonlocal sensitivity to topology of the array at fixed other parameters. We consider an array composed of lossless waveguides, that includes a pair of PT -symmetric waveguides with balanced gain and loss, and reveal that PT -symmetry breaking thresholds are different for planar and circular array configurations. These results demonstrate that PT -symmetric structures can offer new regimes for optical beam shaping compared to conservative structures.
Description
Keywords
Keywords: Circular arrays; Loss-less waveguides; Nonlocal; Nonlocalities; Optical beams; Symmetric structures; Symmetric waveguides; Symmetry-breaking; Waveguide array; Optics; Optoelectronic devices; Waveguides
Citation
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Source
Optics Letters
Type
Journal article
Book Title
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Access Statement
Open Access