Recent progress on nonlinear properties of parity-time (PT)-symmetric systems is
comprehensively reviewed in this article. PT symmetry started out in non-Hermitian quantum …

The light bullet is obtained in tapered graded-index waveguide with parity-time-symmetric
potentials. Different kind of parity-time (PT) symmetric potentials admits different shape of …

Symmetry underpins our understanding of physical law. Open systems, those in contact with
their environment, can provide a platform to explore parity-time symmetry. While classical …

In this paper, we construct a 1D PT-symmetric Thue-Morse aperiodic optical waveguide
network (PTSTMAOWN) and mainly investigate the ultrastrong extraordinary transmission …

The investigation of pseudo-Hermitian systems has garnered widespread attention due to
their distinctive property of purely real eigenvalues splitting into complex conjugate pairs …

We consider a periodic waveguide array whose unit cell consists of a PT-symmetric
quadrimer with two competing loss-gain parameter pairs which lead to qualitatively different …

We propose a parity-time symmetric dielectric–nano-film–dielectric multilayered structure
that could facilitate highly amplified transmission of optical power in the infrared spectrum …

By adjusting the waveguide length ratio, we study the extraordinary characteristics of
electromagnetic waves propagating in one-dimensional (1D) parity-time-symmetric ({PT} PT …

We report a study on a closed-form nonlinear parity-time symmetric optical quadrimer
waveguides system with a specific coupling scheme. The system yields power saturation …

We investigate the nonlinear parity-time (PT) symmetric coupler from a dynamical
perspective. As opposed to linear PT-coupler where the PT threshold dictates the …