Coherent Perfect Absorbers: Time-reversed Lasers

Abstract

We show that an arbitrary body or aggregate can be made perfectly absorbing at discrete frequencies if a precise amount of dissipation is added under specific conditions of coherent monochromatic illumination. This effect arises from the interaction of optical absorption and wave interference, and corresponds to moving a zero of the elastic S-matrix onto the real wavevector axis. It is thus the time-reversed process of lasing at threshold. The effect is demonstrated in a simple Si slab geometry illuminated in the 500-900 nm range. Coherent perfect absorbers are novel linear optical elements, absorptive interferometers, which may be useful for controlled optical energy transfer.

4 pages, 4 figures

References in corpus (4)

• Strong Interactions in Multimode Random Lasers
• Supporting Online Material for "Strong Interactions in Multimode Random Lasers"
• Self-consistent multi-mode lasing theory for complex or random lasing media
• Large Petermann factor in chaotic cavities with many scattering channels

Cited by in corpus (381)

• Nonreciprocal light transmission in parity-time-symmetric whispering-gallery microcavities
• Unidirectional Invisibility induced by PT-Symmetric Periodic Structures
• Non-Hermitian Physics
• Nonlinear waves in $\mathcal{P}\mathcal{T}$-symmetric systems
• PT-symmetry breaking and laser-absorber modes in optical scattering systems
• PT-symmetric laser-absorber
• Light fields in complex media: mesoscopic scattering meets wave control
• A perfect absorber made of a graphene micro-ribbon metamaterial
• Conservation relations and anisotropic transmission resonances in one-dimensional PT-symmetric photonic heterostructures
• Coherent perfect absorbers: linear control of light with light
• Bulk-Boundary Correspondence in a Non-Hermitian System in One Dimension with Chiral-Inversion Symmetry
• Observation of coherent perfect absorption at an exceptional point
• Ultra-thin metamaterial for perfect and omnidirectional sound absorption
• New topological invariants in non-Hermitian systems
• Observation of Parity-Time Symmetry in Optically Induced Atomic Lattices
• PT-Symmetric Electronics
• Photonic Topological Insulating Phase Induced Solely by Gain and Loss
• Subwavelength total acoustic absorption with degenerate resonators
• Non-Hermitian Morphing of Topological Modes
• Perfect Absorption in Ultrathin Epsilon-Near-Zero Metamaterials Induced by Fast-Wave Non-Radiative Modes
• Simultaneous Observation of Topological Edge State and Exceptional Point in an Open and Non-Hermitian System
• Coherent perfect absorption in deeply subwavelength films in the single photon regime
• Antisymmetric PT-photonic structures with balanced positive and negative index materials
• Perfect coupling of light to surface plasmons by coherent absorption
• Quasi-perfect absorption by sub-wavelength acoustic panels in transmission using accumulation of resonances due to slow sound
• Perfectly absorbing exceptional points and chiral absorbers
• General Theory of Spontaneous Emission Near Exceptional Points
• $\mathcal{P}\mathcal{T}$ symmetry in a fractional Schrödinger equation
• Integrable $\mathcal{P}T$-symmetric local and nonlocal vector nonlinear Schrödinger equations: a unified two-parameter model
• PT-Symmetric Talbot Effects
• Waveguide Integrated Superconducting Single Photon Detectors Implemented as Coherent Perfect Absorbers
• Invisibility and PT-symmetry
• Sensitivity of parameter estimation near the exceptional point of a non-Hermitian system
• Topological phases and edge states in a non-Hermitian trimerized optical lattice
• Experimental observation of the dual behavior of $\mathcal{P}\mathcal{T}$-symmetric scattering
• Directional perfect absorption using deep subwavelength low permittivity films
• High-efficiency Ventilated Metamaterial Absorber at Low Frequency
• Effective spontaneous PT-symmetry breaking in hybridized metamaterials
• Scattering in the ultrastrong regime: nonlinear optics with one photon
• Tunable terahertz coherent perfect absorption in a monolayer graphene
• Constant-intensity waves and their modulation instability in non-Hermitian potentials
• Incident Direction Independent Wave Propagation and Unidirectional Lasing
• Non-Hermitian Acoustic Metamaterials: the role of Exceptional Points in sound absorption
• Sound Absorption by Subwavelength Membrane Structures: A Generalized Perspective
• Cavity magnomechanics: from classical to quantum
• Plasmonic nanoantennas as integrated coherent perfect absorbers on SOI waveguides for modulators and all-optical switches
• Unconventional modes in lasers with spatially varying gain and loss
• Controllable coherent perfect absorption in a composite film
• Perfect Single-Sided Radiation and Absorption without Mirrors
• Theory of reflectionless scattering modes
• Parity-Time Symmetry in Non-Hermitian Complex Optical Media
• Broadband perfect absorption of ultrathin conductive films with coherent illumination:Superabsorption of microwave radiation
• Nonlinear modal interactions in parity-time ($\mathcal{P}\mathcal{T}$) symmetric lasers
• Meta-Programmable Analog Differentiator
• Coherent control of light interaction with graphene
• Hidden Black: Coherent Enhancement of Absorption in Strongly-scattering Media
• Coherent perfect absorption of nonlinear matter waves
• Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption
• Graphene-based perfect optical absorbers harnessing guided mode resonances
• Perfect Absorption in a Metasurface-Programmable Complex Scattering Enclosure
• Observation of gate-tunable coherent perfect absorption of terahertz radiation in graphene
• Coherent perfect absorption in a homogeneously-broadened two-level medium
• Tutorial: Nonlinear magnonics
• Optical waveguide arrays: quantum effects and PT symmetry breaking
• Nonlinear Spectral Singularities for Localized Nonlinearities
• Polaritonic coherent perfect absorption based on strong critical coupling between quasi-bound state in the continuum and exciton
• Quantum noise and mode nonorthogonality in nonhermitian PT-symmetric optical resonators
• Massively degenerate coherent perfect absorber for arbitrary wavefronts
• Parity-time symmetry in optical microcavity systems
• Transmission channels for light in absorbing random media: from diffusive to ballistic-like transport
• PT-symmetry breaking in multilayers with resonant loss and gain locks light propagation direction
• Perfect interference-less absorption at infrared frequencies by a van der Waal's crystal
• Coherent control of the optical absorption in a plasmonic lattice coupled to a luminescent layer
• Coherent absorption of N00N states
• Simultaneous Realization of Coherent Perfect Absorber and Laser by Zero-Index Media with both Gain and Loss
• Nanomechanical Inverse Electromagnetically Induced Transparency and Confinement of Light in Normal modes
• PT Symmetry via Electromagnetically Induced Transparency
• Bound states, scattering states and resonant states in PT-symmetric open quantum systems
• Non-Hermitian Photonic Lattices: tutorial
• Plane-wave scattering by self-complementary metasurfaces in terms of electromagnetic duality and Babinet's principle
• Random Matrix Theory Approach to Chaotic Coherent Perfect Absorbers
• Parity-time-symmetric optical lattice with alternating gain and loss atomic configurations
• Perfect Absorption in Complex Scattering Systems with or without Hidden Symmetries
• A unified theory for perfect absorption in ultra-thin absorptive films with constant tangential electric or magnetic fields
• Coherent perfect absorption mediated anomalous reflection and refraction
• Theory of Exceptional Points of Degeneracy in Uniform Coupled-Waveguides and Balance of Gain and Loss
• Self-dual Spectral Singularities and Coherent Perfect Absorbing Lasers without PT-symmetry
• Coherently Enhanced Wireless Power Transfer
• Topology-Enhanced Nonreciprocal Scattering and Photon Absorption in a Waveguide
• Topological Phase Transition Independent of System Non-Hermiticity
• Experimental demonstration of asymmetric diffraction based on a passive parity-time-symmetric acoustic grating
• Time-reversed optical parametric oscillation
• Chiral metamaterials with PT symmetry and beyond
• Localized heat diffusion in topological thermal materials
• Exceptional points and spectral singularities in active epsilon-near-zero plasmonic waveguides
• Tunable nonlinear coherent perfect absorption with epsilon-near-zero plasmonic waveguides
• Crossing of the branch cut: the topological origin of a universal 2π-phase retardation in non-Hermitian metasurfaces
• Armchair graphene nanoribbons: PT-symmetry breaking and exceptional points without dissipation
• Coherent optical control of polarization with a critical metasurface
• Non-reciprocal transmission in photonic lattices based on unidirectional coherent perfect absorption
• Transfer Matrices as Non-Unitary S-Matrices, Multimode Unidirectional Invisibility, and Perturbative Inverse Scattering
• Enhanced Absorption of Waves in Stealth Hyperuniform Disordered Media
• Perfect State Transfer in PT-symmetric Non-Hermitian Networks
• Nonreciprocal Transmission in Nonlinear PT-Symmetric Metamaterials Using Epsilon-near-Zero Media Doped with Defects
• Perfect absorption by an atomically thin crystal
• Hybrid exceptional point created from type III Dirac point
• Noncommutative $q$-photon added coherent states
• Symmetry-Protected Scattering in Non-Hermitian Linear Systems
• A Dynamical Formulation of One-Dimensional Scattering Theory and Its Applications in Optics
• Realization of superabsorption by time reversal of superradiance
• Tunable Terahertz Amplification Based on Photoexcited Active Graphene Hyperbolic Metamaterials
• Non-Hermitian anisotropic XY model with intrinsic rotation-time reversal symmetry
• Reciprocal and unidirectional scattering of parity-time symmetric structures
• Detection sensitivity enhancement of magnon Kerr nonlinearity in cavity magnonics induced by coherent perfect absorption
• Perfect photon absorption in nonlinear regime of cavity quantum electrodynamics
• Optical Spectral Singularities and Coherent Perfect Absorption in a Two-Layer Spherical Medium
• Coherent perfect absorption of path entangled single photons
• Imaging of Iso-frequency Contours via Resonance-Enhanced Scattering in Near-Pristine Photonic Crystals
• Coherent wave control in complex media with arbitrary wavefronts
• Coherent metamaterial absorption of two-photon states with 40% efficiency
• Tunable and Broadband Coherent Perfect Absorption by Ultrathin Black Phosphorus Metasurfaces
• Coherent control of photocurrent in a strongly scattering photoelectrochemical system
• Non-Hermitian phase transition and eigenstate localization induced by asymmetric coupling
• Reflectionless Programmable Signal Routers
• Contrasting Spectral Signatures and Sensitivities of CPA-Lasing in a $\mathcal{P}\mathcal{T}$-Symmetric Periodic Structure
• From scattering theory to complex wave dynamics in non-hermitian PT-symmetric resonators
• Transfer Matrix Formulation of Scattering Theory in Two and Three Dimensions
• Distribution of zeros of the S-matrix of chaotic cavities with localized losses and Coherent Perfect Absorption: non-perturbative results
• Spectral Singularities and Whispering Gallery Modes of a Cylindrical Gain Medium
• Broadband subwavelength focusing of light using a passive drain
• Transmission zeros and ultrasensitive detection in complex systems
• Flat band in two-dimensional non-Hermitian optical lattices
• Progress toward high-Q perfect absorption: A Fano antilaser
• Localised Thermal Emission from Topological Interfaces
• Towards a Broad-Band Coherent Perfect Absorption in systems without Scale-Invariance
• Interference control of perfect photon absorption in cavity quantum electrodynamics
• On-demand coherent perfect absorption in complex scattering systems: time delay divergence and enhanced sensitivity to perturbations
• Modification of light transmission channels by inhomogeneous absorption in random media
• Extreme Sensitivity of Output Directionality to Boundary Perturbation in Wavelength-Scale Microcavities
• Coherent-perfect-absorber and laser for bound states in a continuum
• Self-sustained emission in semi-infinite non-Hermitian systems at the exceptional point
• Gate-tunable coherent perfect absorption of terahertz radiation in graphene
• Omni-resonant optical micro-cavity
• Phase transition through the splitting of self-dual spectral singularity in optical potentials
• Light-controlled perfect absorption of light
• Momentum-independent reflectionless transmission in the non-Hermitian time-reversal symmetric system
• Type II Perfect Absorption and Amplification Modes with Controllable Bandwidth in PT-Symmetric/Traditional Bragg Grating Combined Structures
• Generalized Unitarity and Reciprocity Relations for PT-symmetric Scattering Potentials
• Exceptional points of PT-symmetric reflectionless states in complex scattering systems
• Wavefront Shaping with a Tunable Metasurface: Creating Coldspots and Coherent Perfect Absorption at Arbitrary Frequencies
• Subwavelength focusing inside an open disordered medium by time reversal at a single point antenna
• Dynamic coherent perfect absorption in nonlinear metasurfaces
• Compatibility of transport effects in non-Hermitian nonreciprocal systems
• A physical interpretation for the non-Hermitian Hamiltonian
• Hermitian scattering behavior for the non-Hermitian scattering center
• Scattering concentration bounds: Brightness theorems for waves
• Coherent perfect absorption in a weakly coupled atom-cavity system
• Broadband Coherent Perfect Absorption of Acoustic Waves with Bubble Meta-Screens
• Limits of flexural wave absorption by open lossy resonators: reflection and transmission problems
• Asymmetric lasing at spectral singularities
• Generalization of Wigner Time Delay to Sub-Unitary Scattering Systems
• Coherent perfect absorption of quantum light
• Amplification of quantum signals by the non-Hermitian skin effect
• Geometric interpretations for resonances of plasmonic nanoparticles
• Wave emission and absorption at spectral singularities
• Symmetry in optics and photonics: a group theory approach
• Absorption of scalar waves in correlated disordered media and its maximization using stealth hyperuniformity
• Polaromechanics: cavity-magnon polaritons strongly coupled to phonons
• Poles and zeros in non-Hermitian systems: Application to photonics
• Reflectionless excitation of arbitrary photonic structures: A general theory
• Shape-dependence of transmission, reflection and absorption eigenvalue densities in disordered waveguides with dissipation
• Coherent Perfect Absorption of Arbitrary Wavefronts at an Exceptional Point
• Flat band induced by the interplay of synthetic magnetic flux and non-Hermiticity
• Angular-asymmetric transmitting metasurface and splitter for acoustic wave: a combining of the Coherent Perfect Absorber and Laser
• Coherent perfect absorption and reflection in slow-light waveguides
• Non-Hermitian interferometer: Unidirectional amplification without distortion
• Broadband and energy-concentrating terahertz coherent perfect absorber based on a self-complementary metasurface
• Universal Critical Behaviors in Non-Hermitian Phase Transitions
• Nonreciprocal transmission of electromagnetic waves with nonlinear active plasmonic metasurfaces
• Quantum Coherent Absorption of Squeezed Light
• Perturbative Analysis of Spectral Singularities and Their Optical Realizations
• Steady-state ab-initio laser theory for lasers with fully or nearly degenerate resonator modes
• Spectral Singularities in the TE and TM modes of a PT-Symmetric Slab System: Optimal conditions for realizing a CPA-Laser
• Indifferent electromagnetic modes: bound states and topology
• Robust localized zero-energy modes from locally embedded PT-symmetric defects
• Optics near an hyperbolic defect
• Unidirectional zero reflection as gauged parity-time symmetry
• Excitation of absorbing exceptional points in the time domain
• Pseudo-Hermiticity protects the energy-difference conservation in the scattering
• Emitter and absorber assembly for multiple self-dual operation and directional transparency
• Coherent virtual absorption for discretized light
• $\mathcal{P}\mathcal{T}$-Symmetric Coherent Perfect Absorber with Graphene
• Designing lasing and perfectly absorbing potentials
• Polarization-Controlled Cavity Input-Output Relations
• Universal routes to spontaneous PT-symmetry breaking in non-hermitian quantum systems
• Coherent Perfect Rotation
• Use of Transmission and Reflection Complex Time Delays to Reveal Scattering Matrix Poles and Zeros: Example of the Ring Graph
• CPA-laser effect and exceptional points in PT-symmetric multilayer structures
• Geometric phase and phase diagram for non-Hermitian quantum XY model
• Three-wave mixing with three incoming waves: Signal-Idler Coherent Cancellation and Gain Enhancement in a Parametric Amplifier
• Spectral singularities of odd-$PT$-symmetric potential
• Scattering properties of anti-parity-time symmetric non-Hermitian system
• Coupling-induced nonunitary and unitary scattering in anti-PT-symmetric non-Hermitian systems
• Transforming space with non-Hermitian dielectrics
• Sensitive control of broad-area semiconductor lasers by cavity shape
• Quantum-statistical approach to electromagnetic wave propagation and dissipation inside dielectric media and nanophotonic and plasmonic waveguides
• Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays
• Nonlinear Landauer formula: Nonlinear response theory of disordered and topological materials
• Systematic pathway to $\mathcal{P}\mathcal{T}$ symmetry breaking in scattering systems
• A squeezed review on coherent states and nonclassicality for non-Hermitian systems with minimal length
• Coherent virtual absorption of light in microring resonators
• On active drains and causality
• Coherent resonant transmission
• Nondestructive photon counting in waveguide QED
• Tunable and broadband coherent perfect absorbers with nonlinear and amplification performance based on asymmetric bifacial graphene metasurfaces
• Optomechanical Anti-lasing with Infinite Group Delay at a Phase Singularity
• $\mathcal{P}\mathcal{T}$ symmetry breaking for the scattering problem in a one-dimensional non-Hermitian lattice model
• Nonlinear Scattering and Its Transfer Matrix Formulation in One Dimension
• Self-Shielded Topological Receiver Protectors
• Floquet Perfect Absorbers based on Periodically Driven Targets
• Chaotic Scattering with Localized Losses: S-Matrix Zeros and Reflection Time Difference for Systems with Broken Time Reversal Invariance
• Unitary control of partially coherent waves. I. Absorption
• Point Interactions, Metamaterials, and PT-Symmetry
• Non-Hermitian quantum dynamics and entanglement of coupled nonlinear resonators
• High-order spectral singularity
• Broadband Coherent Perfect Absorber with PT-Symmetric 2D-Materials
• Gain-Loss Coupled Systems
• Perfect absorption of water waves by linear or nonlinear critical coupling
• Coherent perfect absorption and laser modes in a cylindrical structure of conjugate metamaterials
• Nonlinear currents in a ring-shaped waveguide with balanced gain and dissipation
• Anti-Hong-Ou-Mandel interference by coherent perfect absorption of entangled photons
• Novel Topology and Manipulation of Scattering Singularities in Complex non-Hermitian Systems
• Non-Hermitian Fabry-Perot Resonances in a PT-symmetric system
• Accessible phases via wave impedance engineering with PT-symmetric metamaterials
• Harnessing Spectral Singularities in Non-Hermitian Cylindrical Structures
• Coherent perfect absorption in photonic structures
• Pseudomagnetic suppression of non-Hermitian skin effect
• Photon number resolution without optical mode multiplication
• Noise Properties of Coherent Perfect Absorbers and Critically-coupled Resonators
• Quantum transport in non-Hermitian impurity array
• Coherent perfect absorption with and without lasing in complex potentials
• Unitary Scattering Protected by Pseudo-Hermiticity
• A universal form of complex potentials with spectral singularities
• Accidental crossings of eigenvalues in one-dimensional complex PT-symmetric Scarf-II potential
• Parity-time symmetry under magnetic flux
• Zero reflection and transmission in graded index media
• Conserved Correlation in PT -symmetric Systems: Scattering and Bound States
• Lasing with Topological Weyl Semimetal
• Amplified and directional spontaneous emission from arbitrary composite bodies: self-consistent treatment of Purcell effect below threshold
• A new solvable complex PT-symmetric potential
• Eigenfunction non-orthogonality factors and the shape of CPA-like dips in a single-channel reflection from lossy chaotic cavities
• Coherent absorption and enhanced photoluminescence in thin layers of nanorods
• Anisotropy-assisted non-scattering coherent absorption of surface plasmon-polaritons
• Parity-time symmetry and coherent perfect absorption in a cooperative atom response
• Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption
• Adiabatic Approximation, Semiclassical Scattering, and Unidirectional Invisibility
• The particle in a box in PT quantum mechanics and an electromagnetic analog
• Super-Resonant Intracavity Coherent Absorption
• The combination of directional outputs and single-mode operation in circular microdisk with broken PT symmetry
• Helical resonant transport and purified amplification at an exceptional point
• Tunable nonlinear coherent perfect absorption and reflection in cavity QED
• Structure and Symmetry in Coherent Perfect Polarization Rotation
• Single-mode magnon-polariton lasing and amplification controlled by dissipative coupling
• Control of the Scattering Properties of Complex Systems By Means of Tunable Metasurfaces
• Fundamental constraints on the observability of non-Hermitian effects in passive systems
• All-optical transistor based on Rydberg atom-assisted opto-mechanical system
• Constructing the scattering matrix for optical microcavities as a nonlocal boundary value problem
• Ultrabroadband Coherent Perfect Absorption with Composite Graphene Metasurfaces
• Universal quantum control by non-Hermitian Hamiltonian
• Time evolution of decay for purely absorptive potentials: The effect of spectral singularities
• Anderson localization induced by complex potential
• Study on Asymmetric Diffraction of Acoustic Parity-Time-Symmetric Gratings Using Rigorous Coupled-Wave Analysis
• Generalized Sub-Schawlow-Townes Laser Linewidths Via Material Dispersion
• Transport effects in non-Hermitian nonreciprocal systems: General approach
• Graphene multilayers for coherent perfect absorption: effects of interlayer separation
• Radiation forces and torques in optics and acoustics
• Metamaterial slab-based super-absorbers and perfect nanodetectors for single dipole sources
• Universal behavior of the scattering matrix near thresholds in photonics
• Tunable virtual gain in resonantly absorbing media
• Broadband transmission properties of multilayered structures
• Tunable Aharonov-Bohm cages through anti-$\mathcal{P}\mathcal{T}$-symmetric imaginary couplings
• Phase-controlled Optical PT symmetry and asymmetric light diffraction in one- and two-dimensional optical lattices
• Topological winding guaranteed coherent orthogonal scattering
• Statistical Design of Chaotic Waveforms with Enhanced Targeting Capabilities
• Design of a hybrid silicon-plasmonic co-propagant integrated coherent perfect absorber
• Three types of discrete energy eigenvalues in complex PT-symmetric scattering potentials
• Non-hermitian model for resonant cavities coupled by a chiral mirror
• Effects of the third-order dispersion on continuous waves in complex potentials
• Parity-Time Synthetic Laser
• Superconducting nanowire single-photon spectrometer exploiting cascaded photonic crystal cavities
• Coherent scattering from semi-infinite non-Hermitian potentials
• Overcoming the diffraction limit on the size of dielectric resonators using an amplifying medium
• Robust incoherent perfect absorption
• Coherent Perfect Absorption in Tavis-Cummings Models
• Interplay between nonclassicality and $\mathcal{P}\mathcal{T}$ symmetry in an effective two level system with open system effects
• Time-reversal invariant scaling of light propagation in one-dimensional non-Hermitian systems
• Spacing gain and absorption in a simple $\mathcal{P}\mathcal{T}$-symmetric model: spectral singularities and ladders of eigenvalues and resonances
• Solving scattering problems in the half-line using methods developed for scattering in the full line
• Chiral phase modulation and tunable broadband perfect absorber using the coherent cold atomic ensemble
• Nonlinearity-induced Scattering Zero Degeneracies for Spectral Management of Coherent Perfect Absorption in Complex Systems
• Collectively Driven Optical Nanoantennas
• An introductory review on resource theories of generalized nonclassical light
• Scattering Theory and $\mathcal{P}\mathcal{T}$-Symmetry
• Linear and nonlinear coherent perfect absorbers on simple layers
• Absorbance Enhancement of Monolayer MoS${}_2$ in a Perfect Absorbing System
• Inverse Design in the Complex Plane: Manipulating Quasi-Normal Modes
• Spectral Singularities, Threshold Gain, and Output Intensity for a Slab Laser with Mirrors
• Graph theory approach to exceptional points in wave scattering
• Enhancement of signal-to-noise ratio at a high-order exceptional point of coherent perfect absorption
• Superuniversal Statistics of Complex Time-Delays in Non-Hermitian Scattering Systems
• Bound states in the continuum induced via local symmetries in complex structures
• Dynamics of mode entanglement in a system of cavities coupled with a chiral mirror
• Adiabatic Series Expansion and Higher-Order Semiclassical Approximations in Scattering Theory
• Parity-Time Symmetry and Exceptional points: A Tutorial
• Nonlinear graphene metasurfaces with advanced electromagnetic functionalities
• Quantum interference control of perfect photon absorption in a three-level atom-cavity system
• Chiral TeraHertz surface plasmonics
• Tunable ultrahigh reflection with broadband via collective atom-atom interaction in waveguide-QED system
• A universal form of arrays with spectral singularities
• Perturbing scattering resonances in non-Hermitian systems: a generalized Wigner-Smith operator formulation
• High-Order Perfect Absorption in the Absence of Exceptional Point
• Semi-localization transition driven by a single asymmetrical tunneling
• Experimental Realization of Anti-Unitary Wave-Chaotic Photonic Topological Insulator Graphs Showing Kramers Degeneracy and Symplectic Ensemble Statistics
• Oblique scattering from non-Hermitian optical waveguides
• Gap solitons and symmetry breaking in parity-time symmetric microring CROWs
• Omni-resonant imaging across the visible
• Electromagnetic Eigenvalue Problems and Nonhermitian Effects in Linear and Saturable Scattering
• Non-Hermitian physics and engineering in silicon photonics
• Spectral singularities of a potential created by two coupled microring resonators
• Apodized photonic crystals: A non-dissipative system hosting multiple exceptional points
• Singularities of Floquet Scattering and Tunneling
• Optical Cages
• Free-Space Wide-Aperture Sheet-Isolator Based on a Multilayered Resonant Cavity
• Wave Front Shaping in Quasi-One-Dimensional Waveguides
• Epsilon-near-zero plasmonic waveguides to enhance nonlinear coherent light-matter interactions
• Perfectly absorbed and emitted currents by complex potentials in nonlinear media
• Modelling quantum photonics on a quantum computer
• Computing diffraction anomalies as nonlinear eigenvalue problems
• Reciprocity in parity violating non-Hermitian systems
• Acoustic Blackbody Absorption: Transcending Causality Limits through Instability-Induced Softness
• Inverse design of multiresonance filters via quasi-normal mode theory
• Effective size of a parity-time symmetric dimer
• Spectral singularity in composite systems and simulation of a resonant lasing cavity
• Nonlinear Coherent Perfect Absorption
• Universal quantum control over non-Hermitian continuous-variable systems
• Exploring Metamaterial Lasers through Non-Hermitian Scattering Formalism
• Superuniversal Statistics with Topological Origins for non-Hermitian Scattering Singularities
• Subwavelength Interferometric Control of Absorption in Three-port Acoustic Network
• Loss-driven gain enhancements driven by topological singularities in non-Hermitian photonic crystals defects
• Scattering Dynamics and Boundary States of a Non-Hermitian Dirac Equation
• A non-trivial PT-symmetric continuum Hamiltonian and its Eigenstates and Eigenvalues
• Microwave and Acoustic Absorption Metamaterials
• Up-And-Coming Physical Concepts of Wireless Power Transfer
• Exceptional spectrum and dynamic magnetization
• Coherent perfect absorption in resonant materials
• Deep learning estimation of complex reverberant wave fields by a programmable metasurface
• Asymmetric perfect absorption and lasing of nonlinear waves by a complex $\delta$-potential
• Construction of potentials with multiple spectral singularities
• Propagation of light through amplifying honeycomb photonic lattice
• Exploring matter wave scattering by means of the phase diagram
• Coherent control of optical spin-to-orbital angular momentum conversion in metasurface
• An update on coherent scattering from complex non-PT-symmetric Scarf II potential with new analytic forms
• Phase-dependent quantum correlation in cavity-atom system
• Joint control of coherent transmission, reflection, and absorption
• Robust Wave Splitters Based on Scattering Singularities in Complex non-Hermitian Systems
• Physical relevance of time-independent scattering calculations in non-Hermitian systems: The role of time-growing bound states
• Compound symmetries and double antisymmetry groups in linear time-invariant photonic systems
• Acoustic Coherent Perfect Absorbers as Sensitive Null Detectors
• Study of Coherent Perfect Absorption Using Gaussian Beam in a Composite Medium
• Optical emulation of double-continuum Fano interference by circularly dichroic plasmonic metasurfaces
• Dissipation-induced bound states as a two-level system
• On the $\mathcal{P}\mathcal{T}$-symmetric parametric amplifier
• Spatial resolution of omni-resonant imaging
• Broadband Omni-resonant Coherent Perfect Absorption in Graphene
• Emulating Bianisotropic Coupling Through Coherent Illumination
• Pseudospectrum and (in)stability of black hole total transmission modes
• Ultra-broad band perfect absorption realized by phonon-photon resonance in periodic polar dielectric material based pyramid structure
• Coherent Plasmonic Absorption in the Femtosecond Regime
• Linear control of light scattering with multiple coherent light excitation
• Superradiation, Superdirectivity and Efficiency Boosting in Coherently Driven Antennas
• Extra Loss-free Non-Hermitian Engineered Single Mode Laser Systems