Scattering properties of PT-symmetric objects

Abstract

We investigate the scattering response of parity-time (PT) symmetric structures. We show that, due to the local flow of energy between gain and loss regions, such systems can deflect light in unusual ways, as a function of the gain/loss contrast. Such structures are highly anisotropic and their scattering patterns can drastically change as a function of the angle of incidence. In addition, we derive a modified optical theorem for PT-symmetric scattering systems, and discuss its ramifications.

13 pages, 6 figures

References in corpus (13)

• Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry
• Nonreciprocal light transmission in parity-time-symmetric whispering-gallery microcavities
• Unidirectional Invisibility induced by PT-Symmetric Periodic Structures
• Complex Extension of Quantum Mechanics
• PT-symmetry breaking and laser-absorber modes in optical scattering systems
• Visualization of Branch Points in PT-Symmetric Waveguides
• Spawning rings of exceptional points out of Dirac cones
• Solitons in PT-symmetric nonlinear lattices
• PT-symmetry in honeycomb photonic lattices
• Nonlinearly-PT-symmetric systems: spontaneous symmetry breaking and transmission resonances
• Quantum noise and self-sustained radiation of PT-symmetric systems
• Observation of Bloch oscillations in complex PT-symmetric photonic lattices
• From scattering theory to complex wave dynamics in non-hermitian PT-symmetric resonators

Cited by in corpus (6)

• Symmetry-Protected Scattering in Non-Hermitian Linear Systems
• PT-symmetric chiral metamaterials: Asymmetric effects and PT-phase control
• Anomalous Light Scattering by Topological $\mathcal{P}\mathcal{T}$-symmetric Particle Arrays
• Scattering of partially coherent radiation by non-Hermitian localized structures having Parity-Time symmetry
• Shadow-free multimers as extreme-performance meta-atoms
• Resonant scattering of a single atom with gain: a wavefunction-diagrammatic approach