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Parity–time synthetic photonic lattices
The development of new artificial structures and materials is today one of the major research challenges in optics. In most studies so far, the design of such structures has been based on theExpand
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Parity-time–symmetric microring lasers
The ability to control the modes oscillating within a laser resonator is of fundamental importance. In general, the presence of competing modes can be detrimental to beam quality and spectral purity,Expand
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Exceptional points in optics and photonics
Exceptional points in optics Many complex systems operate with loss. Mathematically, these systems can be described as non-Hermitian. A property of such a system is that there can exist certainExpand
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Bragg solitons in nonlinear PT-symmetric periodic potentials
It is shown that slow Bragg soliton solutions are possible in nonlinear complex parity-time (PT ) symmetric periodic structures. Analysis indicates that the PT -symmetric component of the periodicExpand
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Nonlinear reversal of the PT -symmetric phase transition in a system of coupled semiconductor microring resonators
A system of two coupled semiconductor-based resonators is studied when lasing around an exceptional point. We show that the presence of nonlinear saturation effects can have important ramificationsExpand
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Supersymmetric optical structures.
We show that supersymmetry can provide a versatile platform in synthesizing a new class of optical structures with desired properties and functionalities. By exploiting the intimate relationshipExpand
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Supersymmetry-generated complex optical potentials with real spectra
We show that the formalism of supersymmetry (SUSY), when applied to parity-time (PT) symmetric optical potentials, can give rise to novel refractive index landscapes with altogether non-trivialExpand
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Systematic approach for designing zero-DGD coupled multi-core optical fibers.
An analytical method is presented for designing N-coupled multi-core fibers with zero differential group delay. This approach effectively reduces the problem to a system of N-1 algebraic equationsExpand
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Observation of defect states in PT-symmetric optical lattices.
We provide the first experimental demonstration of defect states in parity-time (PT) symmetric mesh-periodic potentials. Our results indicate that these localized modes can undergo an abrupt phaseExpand
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Supersymmetric mode converters
We present the first experimental realization of optical supersymmetry and demonstrate mode conversion and global phase-matching between SUSY partner structures. Our results may pave the way forExpand
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