Exceptional points in optics and photonics
The topic of exceptional points in photonics is reviewed and some of the possible exotic behavior that might be expected from engineering such systems are explored, as well as new angle of utilizing gain and loss as new degrees of freedom, in stark contrast with the traditional approach of avoiding these elements.
Parity–time synthetic photonic lattices
- A. Regensburger, C. Bersch, M. Miri, G. Onishchukov, D. Christodoulides, U. Peschel
- PhysicsNature
- 8 August 2012
The experimental observation of light transport in large-scale temporal lattices that are parity–time symmetric is reported and it is demonstrated that periodic structures respecting this symmetry can act as unidirectional invisible media when operated near their exceptional points.
Parity-time–symmetric microring lasers
- H. Hodaei, M. Miri, M. Heinrich, D. Christodoulides, M. Khajavikhan
- PhysicsScience
- 21 November 2014
By harnessing notions from parity-time (PT) symmetry, stable single–longitudinal mode operation can be readily achieved in a system of coupled microring lasers and the selective breaking of PT symmetry can be used to systematically enhance the maximum attainable output power in the desired mode.
Supersymmetric optical structures.
- M. Miri, M. Heinrich, R. El-Ganainy, D. Christodoulides
- PhysicsPhysical Review Letters
- 24 April 2013
It is shown that supersymmetry can provide a versatile platform in synthesizing a new class of optical structures with desired properties and functionalities and that one-dimensional supersymmetric pairs display identical reflectivities and transmittivities for any angle of incidence in the Helmholtz regime.
Supersymmetry-generated complex optical potentials with real spectra
- M. Miri, M. Heinrich, D. Christodoulides
- Physics
- 7 May 2013
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-trivial…
Bragg solitons in nonlinear PT-symmetric periodic potentials
- M. Miri, A. Aceves, T. Kottos, V. Kovanis, D. Christodoulides
- Physics
- 4 September 2012
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 periodic…
Anti–parity-time symmetry in diffusive systems
- Ying Li, Yugui Peng, C. Qiu
- PhysicsScience
- 12 April 2019
The concepts of parity-time symmetry need not be restricted to wave dynamics and may offer opportunities to manipulate heat and mass transport, and systems described by diffusive dynamics are considered.
Continuous and discrete Schrödinger systems with parity-time-symmetric nonlinearities.
- A. Sarma, M. Miri, Z. Musslimani, D. Christodoulides
- MathematicsPhysical review. E, Statistical, nonlinear, and…
- 28 October 2013
This work investigates the dynamical behavior of continuous and discrete Schrödinger systems exhibiting parity-time (PT) invariant nonlinearities and identifies the PT-symmetry-breaking conditions.
Nonlinear reversal of the PT -symmetric phase transition in a system of coupled semiconductor microring resonators
- A. U. Hassan, H. Hodaei, M. Miri, M. Khajavikhan, D. Christodoulides
- Physics
- 14 October 2015
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 ramifications…
Systematic approach for designing zero-DGD coupled multi-core optical fibers.
- M. Parto, M. A. Eftekhar, M. Miri, R. Amezcua-correa, Guifang Li, D. Christodoulides
- PhysicsOptics Letters
- 12 April 2016
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 equations…
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