Nonlinear switching and solitons in PT‐symmetric photonic systems

By S. Suchkov, A. Sukhorukov, Jiahao Huang, Sergey V. Dmitriev, Chao-Kuei Lee, Yuri Kivshar. 2015

354 citations recorded by the source corpus.

One of the challenges of the modern photonics is to develop all‐optical devices enabling increased speed and energy efficiency for transmitting and processing information on an optical chip. It is believed that the recently suggested Parity‐Time (PT) symmetric photonic systems with alternating regions of gain and loss can bring novel functionalities. In such systems, losses are as important as gain and, depending on the structural parameters, gain compensates losses. Generally, PT systems demonstrate nontrivial non‐conservative wave interactions and phase transitions, which can be employed for signal filtering and switching, opening new prospects for active control of light. In this review, we discuss a broad range of problems involving nonlinear PT‐symmetric photonic systems with an intensity‐dependent refractive index. Nonlinearity in such PT symmetric systems provides a basis for many effects such as the formation of localized modes, nonlinearly‐induced PT‐symmetry breaking, and all‐optical switching. Nonlinear PT‐symmetric systems can serve as powerful building blocks for the development of novel photonic devices targeting an active light control.

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/0326944acac69838359f829fe139fc04a6704448

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In Atomic and Molecular Physics, and Optics

In Statistical and Nonlinear Physics

Citations in the corpus

(INVITED) Vortex solitons: Old results and new perspectives (2019, background): “In the combination with nonlinearity, PT -symmetric systems readily create solitons [297, 298].”
Nonlinear waves in PT -symmetric systems (2016, background): “…governed by the Schrödinger equation i ∂ψ ∂t = Hψ(r, t), (1) where the linear operator H acts in a Hilbert space L2(RD) endowed with an inner product 〈ψ, φ〉 = 1 After submission of this review we became aware of the work of Suchkov et al. (2016) which addresses PT symmetry in optical applications.”