Emitter and absorber assembly for multiple self-dual operation and directional transparency
arXiv:1609.04211 · doi:10.1063/1.4978931
Abstract
A recursive scheme for the design of scatterers acting simultaneously as emitters and absorbers, such as lasers and coherent perfect absorbers in optics, at multiple prescribed frequencies is proposed. The approach is based on the assembly of non-Hermitian emitter and absorber units into self-dual emitter-absorber trimers at different composition levels, exploiting the simple structure of the corresponding transfer matrices. In particular, lifting the restriction to parity-time-symmetric setups enables the realization of emitter and absorber action at distinct frequencies and provides flexibility in the choice of realistic parameters. We further show how the same assembled scatterers can be rearranged to produce unidirectional and bidirectional transparency at the selected frequencies. With the design procedure being generically applicable to wave scattering in single-channel settings, we demonstrate it with concrete examples of photonic multilayer setups.
arXiv comment5 pages, 2 figures
References in corpus (15)
- Unidirectional Invisibility induced by PT-Symmetric Periodic Structures
- Coherent Perfect Absorbers: Time-reversed Lasers
- PT-symmetry breaking and laser-absorber modes in optical scattering systems
- PT-symmetric laser-absorber
- Spectral Singularities of Complex Scattering Potentials and Infinite Reflection and Transmission Coefficients at real Energies
- Ultra-thin metamaterial for perfect and omnidirectional sound absorption
- PT-Symmetric Electronics
- Spectral singularities and Bragg scattering in complex crystals
- Invisibility and PT-symmetry
- Ultra-sensitive surface absorption spectroscopy using sub-wavelength diameter optical fibers
- Breaking of PT-symmetry in bounded and unbounded scattering systems
- Self-dual Spectral Singularities and Coherent Perfect Absorbing Lasers without PT-symmetry
- Unidirectional reflectionlessness and invisibility in the TE and TM modes of a PT-symmetric slab system
- Contrasting Spectral Signatures and Sensitivities of CPA-Lasing in a -Symmetric Periodic Structure
- Spectral Singularities in the TE and TM modes of a PT-Symmetric Slab System: Optimal conditions for realizing a CPA-Laser
Cited by in corpus (12)
- Symmetry-Protected Scattering in Non-Hermitian Linear Systems
- Unidirectional Invisibility and PT-Symmetry with Graphene
- Nonlinear Spectral Singularities and Laser Output Intensity
- Coherent perfect absorption and laser modes in a cylindrical structure of conjugate metamaterials
- Spectral singularities and tunable slab lasers with 2D material coating
- Broadband and Wide-Angle Invisibility with PT-Symmetric 2D-Weyl Semimetal
- Solving scattering problems in the half-line using methods developed for scattering in the full line
- Born-Padé approach to electromagnetic scattering in complex one-dimensional inhomogeneous slabs
- Polar magneto-optic Kerr and Faraday effects in finite periodic \texorpdfstring{}{PT}-symmetric systems
- Scattering Theory and -Symmetry
- Spectral Singularities, Threshold Gain, and Output Intensity for a Slab Laser with Mirrors
- Scattering by a collection of -function point and parallel line defects in two dimensions