Cascaded grating filters yield low-crosstalk CWDM4 demux
Compact 1.6 mm device hits below -25 dB crosstalk with 18 nm flat bands for 2xFR4 modules
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Protocol creates first magnonic GKP states in crystals
Ellipsoidal magnetic crystals and cavity-coupled qubits produce phase-space grid states for bosonic error correction.
Metasurface detects two THz fingerprints and tracks reactions simultaneously
One pixel captures pefloxacin absorption lines at 0.78 and 0.99 THz while monitoring vitamin C kinetics in real time.
Full momentum bandgap spans entire space in microwave PTC
Modulated coupled-resonator structure enables arbitrary spatial localization and temporal amplification.
· “Observation of full momentum bandgap in photonic time crystals”
Skyrmions shift light's orbital angular momentum per photon
Handedness of circular polarization sets the sign; the predicted shift is ~0.3 OAM quanta at iron's L3 edge.
· “Optical spin-orbit interaction induced by magnetic textures”
Only the magnon-qubit platform has created magnonic quantum states
A superconducting qubit's nonlinearity lets single magnons be created, detected, and squeezed.
· “Quantum Magnonics: Quantum States Generation and Applications”
Bismuth upconversion particles triple brightness
Three-fold quantum-yield gain and quench/enhance regimes support lower-power sub-diffraction bioimaging
· “NaBiF₄: Er³⁺, Yb³⁺ upconversion particle as a multi-functional bio-marker”
Hybrid CNN plus L-BFGS reaches 0.99 efficiency on wavefronts
Initial neural-network estimate refined by optimization yields Strehl ratio 0.96 in 2-4 steps on real laser distortions.
· “Hybrid deep learning-based phase diversity method for wavefront reconstruction”
Transceiver, not fiber, caps QAM at 256 for 64-GBaud links
A 25 dB transceiver ceiling blocks 1024-QAM on both fibers; HCF still triples reach.
· “System-Level Limits of Higher-Order QAM in Hollow-Core Fiber Systems”
Algorithm reaches sub-8 nm hard X-ray ptychography with mirrors
Generalized Wirtinger Projections corrects uncertainties to deliver the resolution with achromatic AKB optics at 12.4 keV.
· “Sub-8-nm resolution AKB-mirror-based hard X-ray ptychography via generalized Wirtinger projections”
Hybrid layers boost scintillator light output 700-fold
Alternating scintillator and stopping layers raise both X-ray absorption and emission rate for better detectors
· “Hybrid Nanophotonic Scintillators for Enhanced X-ray Absorption, Emission, and Time Resolution”
Bilayer PhCs convert Janus BICs to tunable chiral resonances
Interlayer and diagonal displacements split topological charges and enable conductivity-switched CD above 0.89 while keeping high Q.
· “Tunable high-Q Janus-to-chiral bound states in the continuum in bilayer PhCs”
Two-parameter photonic QNN beats classical nets needing eight parameters
Even the simplest gate-based quantum classifier reaches 100 percent accuracy on nonlinear tasks where matched artificial neural networks fai
· “Algorithmic Advantage on a Gate-Based Photonic Quantum Neural Network”
Inverse design yields foundry-ready multimode grating couplers
Minimum feature sizes dominate, etch robustness stabilizes other errors, and scaling laws stay unchanged for layer count and thickness.
· “Multimode grating couplers via foundry-compliant inverse design”
Neural network adds second hologram for single-shot phase retrieval
YOSO creates a synthetic defocused view from one capture so the Gerchberg-Saxton algorithm recovers the object wave in in-line holography of
Free-space CVQKD hits 10.34 Mbps secret key rate
Self-referenced passive preparation plus local oscillator keeps noise low across 23.5 dB loss and turbulence
· “High-Rate Free-Space Continuous-Variable QKD with Self-Referenced Passive State Preparation”
Plasma gratings match optical theory for pulse compression
0.005 deg/nm dispersion measured in 10-micron structures supports compact petawatt-to-exawatt laser designs
· “Dispersive Properties of Plasma Diffraction Gratings: Towards Plasma-Based Laser Pulse Compression”
SOA pumping hits 80 fT/sqrt(Hz) in Rb magnetometer
Higher-power SOA amplitude modulation reaches environment-limited sensitivities of 80 fT/sqrt(Hz) at 600 Hz in an Rb OPM.
· “Fast, powerful, low-noise optical pumping of an atomic vapor with semiconductor optical amplifiers”
MEMS modulator corrects 144-mode aberrations six times faster
High-resolution phase device delivers twofold signal gain in under one second for two- and three-photon brain imaging.
Interference rotates supersolids in ring-cavity BEC without stirring
Annular condensate coupled to traveling-wave modes yields tunable rotational supersolids and cavity-detectable Goldstone-Higgs excitations.
· “Supersolid Rotation in an Annular Bose-Einstein Condensate coupled to a Ring Cavity”
Kerr imaging reveals movable altermagnetic domains in MnTe
Two distinct time-reversal symmetry breaking regions produce large optical rotations and shift under magnetic fields or heat despite near-c零
· “Magneto-optical imaging of macroscopic altermagnetic domains in MnTe”
Natural oxide canals light one way without device engineering
Frequency alone retunes the polariton canalization contour in pristine alpha-V2O5
· “Tunable Polariton Canalization in Natural van der Waals Oxide”
Lucas sequences show up as non-Hermitian zero modes
Gain-loss reservoirs host complementary integer sequences as edge and constant-intensity states
· “Observing complementary Lucas sequences using non-Hermitian zero modes”
21 O-band microcomb lines powered above 0 dBm by bismuth amplifier
Single-stage flat-gain design enables 32 GBaud 64-QAM transmission across 100 nm without equalization.
· “Unlocking the O-Band: high-power, broadband soliton microcomb”
One network designs THz 3D holograms for any distance
Self-supervised LM-PINN maps targets to metasurfaces with higher quality and sub-second inference, generalizing without retraining.
Kilohertz voltage imaging of neurons now possible with new microscopy methods
Random-access and multiplexing techniques capture fast membrane potential changes missed by calcium imaging, revealing precise circuit event
· “High-speed optical microscopy for neural voltage imaging: Methods, trade-offs, and opportunities”
Barium titanate outdoes lithium niobate for quantum Bell states
Simple crystal rods, no special patterning, could produce polarization-entangled photon pairs with high concurrence, simulations show.
Lens reads vortex charge from the zeros it splits into
Electrically switched lens reveals magnitude and sign of a vortex charge without touching the setup
Soliton pulse provably maximizes nonlinear conversion
At fixed pulse energy the optimal stored field is a sech soliton; n-fold overcoupling follows as the design rule.
Two-photon absorption at silicon enables 40x bandwidth MIR ghost imaging
Compact system transfers near-IR modulation to mid-IR signals for high-sensitivity detection across 2.5-3.8 μm without crystals.
· “Mid-infrared temporal ghost imaging via two-photon structured encoding”
Laser detuning maps skin modes in non-Hermitian frequency lattices
Synthetic boundaries in a modulated ring resonator allow reconstruction of energy-dependent boundary states in 1D and 2D.
· “Energy-Resolved Eigenmode Spectroscopy of 1-D and 2-D Non-Hermitian Skin Effects”
Monotiles yield unique polariton coherence patterns
Single-tile aperiodic structures in microcavities produce six-fold Bragg peaks and synchronization unlike periodic or Penrose cases.
Helicity reversal steers hyperbolic plasmons on demand
In MoOCl2 both hyperbolic and surface modes fully reverse direction when incident light handedness flips, enabling intrinsic polarization-to
Collinear phase-cycling isolates background-free two-quantum spectra
Post-processing removes incoherent mixing to reveal exciton annihilation dynamics in squaraine systems.
Silicon nitride on sapphire posts sub-0.1 dB/cm loss and first comb
Below 0.1 dB/cm propagation loss and the first soliton combs give the platform mid-infrared reach.
· “Ultra-Low-Loss Silicon Nitride on Sapphire for Broad-Transparency Nonlinear and Quantum Photonics”
New wave-scattering rules hold at every frequency
Waveguide networks reveal linear constraints beyond reciprocity and symmetry, confirmed by coaxial-cable tests from 0 to 1 GHz.
· “Beyond geometric symmetry: Broadband linear relations in wave scattering”
Corner curvature, not just gap, tunes plasmon resonances
Simulations show silver bowties shift higher-order resonances as corners sharpen, adding a new tuning knob.
Thin GaN interlayer places quantum emitters at chosen depth
Room-temperature single-photon sources can now sit inside cavities and diodes with sub-60 nm accuracy.
· “Depth Control of Room-Temperature Quantum Emitters in Gallium Nitride”
One microwave tone splits and swaps frequency modes on a silicon chip
Foundry silicon with bonded lithium niobate gives 50/50 beam splitting and >20 dB pump extinction at 10 GHz.
· “A heterogeneously integrated coupled-cavity frequency beam splitter”
Off-center shells turn dark plasmons into bright resonances
Nonconcentric nanowire shells also focus light in the thinnest gaps, enabling geometry-controlled hot spots.
Cavity-selected subspaces dictate whether spin dynamics stays local
Subspaces with product-state bases keep locality; entangled subspaces dress local moves with global operators
· “Structured Non-Locality and Emergent Locality in Cavity-QED Many-Body Dynamics”
Weevil blue comes from ring and pore resonances
Matching simulated spectra identifies short-range ring and pore disorder as the control, with long-range order playing a minor role.
First room-temperature graphene THz detector on a silicon waveguide
At 139 GHz it reaches 11.5 V/W with a 1.94 GHz cutoff; speed is limited by bond wires, not graphene.
· “Room-temperature graphene sub-terahertz detector integrated on a silicon dielectric waveguide”
Odd-parity quantum-switch probes beat Gaussian limit in joint sensing
The best Gaussian probe splits energy between squeeze and displacement; odd-order ICO probes go lower.
· “Surpassing Gaussian optimality in multiparameter estimation with indefinite causal order”
Light's orbital angular momentum writes a magnet's topological charge
Simulations show vortex beams write bimerons and antibimerons whose charge equals the beam's orbital angular momentum.
· “Quantum encoding of structured light into in-plane topological spin textures”
One projector sorts non-Hermitian flat bands into four classes
Continuity locks all three Chern numbers; a pole lets them differ and supercharges resonant transfer.
Diamond maser keeps 10^14 spins coherent at room temperature
Solid-state superradiant maser shows three collective phases, including a continuous time crystal.
· “Sustained macroscopic quantum coherence in a superradiant solid under ambient conditions”
Topological edges make normal-dispersion rings emit combs
Edge-state resonances satisfy four-wave-mixing phase matching on their own, enabling dark, flat-top, and bright-like soliton combs without…
Diffractive lens shapes satellite beams to resist pointing jitter
Design method reproduces lower-order super-Gaussian profiles and maps fabrication limits for space links.
Nonlocality should be designed
Calibrated interaction models and stability maps, not ideal phase labels, tell when a topological design works in a real device.
· “Nonlocality is the missing design rule for topological photonics”
Multispectral models beat chlorophyll-only for every pigment
Six wavebands plus attenuation data improve estimates of eight pigments, especially alloxanthin and two fucoxanthin markers.
Ionized water builds D2 in 34 and 72 femtoseconds
The reaction is a detour: an excited-state bend, a symmetry break, then bond formation.
· “Tracking molecular hydrogen formation from ionized water in real time”
Hidden orbital pathways steer hot-carrier relaxation in MXenes
A quantum-kinetic model shows spectroscopically faint channels can still dominate energy flow.
Quantum photocurrents set the shape of MXene terahertz pulses
A multiscale model links engineered three-color laser pulses to THz output through transient photocurrents.
Multi-agent LLM hits 97.7% F1 on live million-link fiber nets
Ten-week production run also cut fault incidents by more than 60 percent, the paper reports.
Ultrafast index oscillations traced to a Bessel-function law
Theory ties the 10-20 fs refractive-index response of transparent conductive oxides to reversible intraband electron motion, confirmed in…
YIG nanocavities hit Q of 1,800 at 1500 nm
A monocrystalline YIG-on-insulator platform yields telecom nanocavities with Q near 1,800 and a path to tenfold higher Q.
· “Photonic Crystal Defect Nanocavities Based on Monocrystalline Yttrium Iron Garnet”
Kalman filter cuts phi-OTDR sensitivity threshold by ~35 dB
Phase stays measurable below -3 dB uncertainty at SNR down to -32 dB, versus 3.5 dB with conventional I/Q demodulation.
A pulse's light footprint decides how much of a film it flips
Simulation closes the write-and-read loop: polarization and mode shape carry the bit; power does not.
A 300-nm gold lattice separates corner and edge light
At 546 and 642 nm the same lattice concentrates corner and edge light with ~10^4 contrast.
Skyrmion pulses keep their topology in noisy channels
One microwave metasurface makes space-time vector beams; the skyrmion number holds near one through random masks.
Two tiny lasers on one chip create a pair of light combs that together read out infrared…
A chip-scale dual-comb spectrometer with two integrated racetrack lasers sweeps its comb teeth across the gaps to measure mid-infrared gas…
Early plasma reshaping is recombination
A single disc's density-dependent recombination map predicts how independent plasma discs broaden and flatten in the first 200 ps.
Sampled angles make light revive at prime-power distances
Free-space diffraction maps least common multiples to revival planes, reading out prime powers.
· “Chebyshev self-imaging from inverse-sampled angular spectra”
Coherence matrices diagonalized on chip in O(N) steps
Reconstruction and diagonalization both happen on one programmable photonic mesh in a linear number of steps.
· “Diagonalizing an optical coherence matrix via on-chip Stokes tomography”
Exact mass profiles cloak spheres
Coordinate transformations yield position-dependent mass and potential that steer matter waves around a hidden region.
Twist turns a 3D photonic crystal from transparent to blocking
One rotation angle sweeps a 3D woodpile crystal from transparent to reflecting; a simple formula tracks the resonances.
· “Dynamically twistable three-dimensional moir\'e photonic crystals”
One tiny scatterer classifies handwritten digits at 90 percent
A trainable multipole matrix inside a single particle matches a single-layer neural net on MNIST.
Gradient-based loss resolves what dark-field tomography misses
Fourier ptychographic tomography judged on edge maps tolerates low-signal dark-field data and reaches gigavoxel volumes.
· “Feature-domain Fourier ptychographic tomography with dark-field illumination”
A micro-thermometer performs infrared spectroscopy on liquids
CMOS-built platinum sensor reaches signal-to-noise near 1000 and spots 10 g/L glucose in water.
Zero-frequency modes survive inside a gapless photonic lattice
Two coupled ring resonators and a trichromatic drive realize critical topological photonic states that current devices can build.
Magnon scattering yields Gaussian and vortex beams at once
The crystal lattice supplies the missing angular momentum, and stronger focusing flips which beam dominates.
Quantum trick pushes single-pixel imaging past shot noise
A quantum-operator framework claims Heisenberg-limited reconstruction, going from $1/\sqrt{N_{\mathrm{ph}}}$ to $1/N_{\mathrm{ph}}$ with…
· “Reinventing the Single-pixel Imaging Paradigm via Quantum-Operator-Based Signal Processing”
Chiral pitch sets the scale for soliton formation in liquid crystals
A closed-form model reproduces self-focusing and astigmatic nematicons at a fraction of the cost.
Six corrections flatten AOM output power to within 1% over 100 MHz
A model-free calibration turns a nonlinear acousto-optic modulator into a programmable waveform generator.
Cancel a decay path and a leaky atom emits thousands of photons
Coherent interference kills the off-target decay, so optical readout can collect thousands of photons instead of ten.
· “Increased cyclicity of atomic transitions via coherent interference of decay paths”
Nanophotonic AI is still domain-specific
Broadly useful photonic AI will need physics-grounded, multimodal models tied to simulation and experiment.
Self-assembled photonic crystal hosts Weyl points and Fermi arc
Unequal patchy colloids break inversion symmetry, making topological light states reachable at visible wavelengths.
· “Weyl Points and Fermi Arc Surface States in a Self-assemblable Zinc-Blende Photonic Crystal”
White light cavity lasers lock 10x wider and 2500x faster
Engineered zero group index gives injection locking a wider range and faster response without raising the lasing threshold.
· “Optical injection locking of white light cavity based superluminal lasers”
Two laser pulses turn silicon into a temporary metal
A nanoscale photon trap plus a femtosecond pulse pushes carrier density past the Mott threshold without melting silicon.
· “Femtosecond Laser Induced Metallization in Silicon via Photon Momentum Mediated Band Transition”
