OOIR: Observatory of International Research

Papers

(The TQCC of Optics Letters is 6. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-02-01 to 2025-02-01.)

Article	Citations
All-fiber nonvolatile broadband optical switch using an all-optical method	139
Deep-learning-based bright-field image generation from a single hologram using an unpaired dataset	115
Demonstration of beam steering using a passive silica optical phased array with wavelength tuning	96
Mirrored transformation optics	91
Microsphere-assisted super-resolution polarized light microscopy for polarization-sensitive materials	88
Exceptional-point-enhanced nanoparticle sensor utilizing a linewidth broadening mechanism	83
Silicon computational spectrometer with 32-channel meta-structures	73
Extended eigenvalue calibration method for Mueller matrix polarimetry with four photoelastic modulators	73
Nonlinear Airy beam propagation in defected photonic lattices	71
Inverse design and fabrication of high-efficiency perfectly vertical LNOI grating couplers	69
Optical amplification ranging from 1600 to over 1680 nm in thulium-doped fluorotellurite glass fibers with a terbium-doped cladding	69
Laser diode driver for high-power VCSEL	67
Multi-wavelength DFB laser based on a sidewall third-order four phase-shifted sampled Bragg grating with uniform wavelength spacing	67
Optical engineering of 3D quantum Hall effect in Floquet Weyl semimetals	65
Robust multimode interference and conversion in topological unidirectional surface magnetoplasmons	61
High-fidelity lens-free on-chip microscopy via dual-channel noise separation	59
Unknown Weak Light Pulse Measurement Using Time Interval Distribution Photon Counting	59
Fast Polarization Independent Tunable Liquid Crystal Solc Filter using Sagnac Configuration	57
Post-removal for the deposited Au metal to increase the light extraction efficiency for AlGaN-based deep-ultraviolet light-emitting diodes	57
Generation of 978 nm dispersion-managed solitons from a polarization-maintaining Yb-doped figure-of-9 fiber laser	57
White-light biospeckle displacement analysis for the assessment of fruit quality	57
Amplification of 14 orbital angular momentum modes in ring-core erbium-doped fiber with high modal gain	56
Single-modulator, direct frequency comb spectroscopy via serrodyne modulation	56
Active tuning of dispersive waves in Kerr soliton combs	55
Error-free PAM-4 transmission by a high-speed plastic optical fiber without forward error correction	54

Distributed vibration sensor based on mode coupling in weakly coupled few-mode fibers	53
Microsecond-resolved smartphone time-gated luminescence spectroscopy	52
Narrow-linewidth self-injection locked diode laser with a high-Q fiber Fabry–Perot resonator	51
Temporal characteristics of stationary switching waves in a normal dispersion pulsed-pump fiber cavity	51
Background-free correlation spectroscopy using an infrared mode-locked laser	50
Theory of χ⁽²⁾-microresonator-based frequency conversion	50
Extending mid-infrared wavelength to 6.84 μm in oxide nonlinear optical crystal via birefringence dispersion management	49
Bias-aided DD-LMS equalizer for optical multipath-interference-impaired high-speed PAM4 transmission systems	49
Squeezing enhancement by suppression of noise through a resonant interferometric coupler	48
SPIDERweb: a neural network approach to spectral phase interferometry	47
Theoretical analysis for estimating laser integrated linewidth via frequency-noise power spectral density	47
Magnetic field measurement with temperature compensation based on a fiber ring microwave photonic filter and Vernier effect	47
Passive polarimetric imaging of millimeter and terahertz waves for personnel security screening	45
Single-beam NMOR atomic magnetometer based on a fiberized EOM	44
Ultracompact metalens-based beam-focusing fiber-optic device with a large numerical aperture	44
Bending-loss-resistant distributed Brillouin curvature sensor based on an erbium-doped few-mode fiber	43
Robust phase unwrapping via non-local regularization	43
Deformable mirror based optimal PSF engineering for 3D super-resolution imaging	42
Active beam manipulation and convolution operation in VO₂-integrated coding terahertz metasurfaces	42
Experimental demonstration of frequency- downconverted arm-length stabilization for a future upgraded gravitational wave detector	42
High-speed visible supercontinuum laser absorption spectroscopy of metal oxides	42
Spatially distributed low-cross talk vector beams	42
Terahertz spin-selective perfect absorption enabled by quasi-bound states in the continuum	42
Maximizing the forward scattering of dielectric nanoantennas through surface impedance coatings	41
Adaptive decision threshold for an optical multipath-interference-impaired short-reach 50-Gbps PAM4 transmission	41
Multi-color method for the self-correction of the air refractive index	41
End-to-end learning of joint noise shaping and probabilistic shaping for OAM mode division multiplexing transmission	41
Computed tomography imaging spectrometry based on superiorization and guided image filtering	41
2.4 ng/√Hz low-noise fiber-optic MEMS seismic accelerometer	41
OAM degree of coherence	41
Photonic lantern tip/tilt detector for adaptive optics systems	40
Temperature-dependent cross section spectra for thulium-doped fiber lasers	40
Miniaturized guided-mode resonance laser based on a one-dimensional finite heterostructure cavity	40
Temperature-dependent characteristics of GeSn/Ge multiple-quantum-well photoconductors on silicon	40
All-fiber cyan laser at 491.5 nm	40
Luminescence performance and vibronic behavior of Mn⁴⁺-activated Ca_14-xK_xAl₁₀Zn₆O₃₅ deep-red phosphor	39
Qudit-based high-dimensional controlled-not gate	39
Intrinsic amplitude-noise suppression in fiber lasers mode-locked with nonlinear amplifying loop mirrors	39
Multi-exposure interferometric diffusing wave spectroscopy	39
Combining time of flight and photometric stereo imaging for 3D reconstruction of discontinuous scenes	38
Broadband optical properties of Ti₃C₂ MXene revisited	38
Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement	38
Demonstration of a compact, multi-joule, diode-pumped Tm:YLF laser	38
Angle-selective chiral absorption induced by diffractive coupling in metasurfaces	38
Cost-effective gaze tracking system based on polymer fiber specklegrams	37
Kerr-lens mode-locked femtosecond Yb:CALYO oscillator with more than 20-W average power	37
Integrated programmable strongly coupled three-ring resonator photonic molecule with ultralow-power piezoelectric control	37
Magnetic tuning with minimal thermal drift in high-Q microspheres coated with magnetorheological polydimethylsiloxane	37
Imaging with an inverse-designed 50 mm-diameter f/1 MWIR flat lens with enhanced field of view and depth of focus	37
Entangled sideband control scheme via frequency-comb-type seed beam	37

Complex anisotropy ratio of third harmonic generation in a semiconductor using a terahertz free electron laser	37
Heterodyne detection applied to a fiber Bragg grating-based sensor using a directly modulated distributed feedback laser	37
GaN-based green resonant-cavity light-emitting diodes with Al mirror and copper plate	35
Space optical communication system with a sub-second acquisition time	35
Packaged optofluidic microbottle resonator for high-sensitivity bidirectional magnetic field sensing	35
Microbubble-probe WGM resonators enable displacement measurements with high spatial resolution	35
Higher-order topological states in two-dimensional Stampfli-Triangle photonic crystals	35
Broad temperature range ferrielectric liquid crystal as a highly sensitive quadratic electro-optical material	35
A simple image processing pipeline to sharpen topology maps in multi-wavelength interference microscopy	35
Analysis and experimental demonstration of propagation features of radially polarized specific non-uniformly correlated beams	34
Near-infrared photodetection and time-resolved photocurrents in cadmium arsenide heterojunctions	34
Photoconductive terahertz generation in nitrogen-doped single-crystal diamond	34
Generic saturation-induced phase error correction for structured light 3D shape measurement	33
Compact mode converter on SOI based on a polygonal subwavelength grating structure	33
Short, broadband, and polarization-insensitive adiabatic Y-junction power splitters	33
Broadband and flat millimeter-wave noise source based on the heterodyne of two Fabry–Perot lasers	33
All-silicon TM polarizer covering the 1260–1675 nm bandwidth using a band engineered subwavelength grating waveguide	33
Yb:GdScO₃ crystal for efficient ultrashort pulse lasers	33
Limited impact of the sidewall effect in dependence of temperature for InGaN-based blue micro-LEDs grown on a silicon substrate	33
Dual-key-based adaptive watermark embedding for light field 3D images	33
Electrically tunable metasurface in TN LC configuration with enhanced quality factor and metaatom-induced alignment	32
High-sensitivity miniaturized spectrometers using photonic crystal slab filters	32
Bifocal lenses with adjustable intensities enabled by bilayer liquid crystal structures	32
Chirped periodically poled lithium-niobate-on-insulator micro-waveguides for broadband second-harmonic generation	32
Atomic frequency standard based on direct frequency comb spectroscopy	32
All-fiber miniature non-contact photoacoustic probe based on photoacoustic remote sensing microscopy for vascular imaging in vivo	32
All-fiber GHz few-cycle pulse generation at 2 µm	32
Frequency aware high-quality computer-generated holography via multilevel wavelet learning and channel attention	32
Theoretical framework for calibrating the depth-dependent optical scattering in layered human skin using spatially offset measurements	31
Low-threshold CW eye-safe vortex generation from an intracavity pump-wave off-axis pumped OPO	31
C3SI—compact complementary compressed spectral imaging	31
Compact speckle spectrometer using femtosecond laser-induced double-sided surface nanostructures	31
Monolithic all-silicon flat lens for broadband LWIR imaging	31
Multi-cycle terahertz generation in lithium niobate wafer stacks via mid-infrared pumping	31
Efficient perovskite light-emitting diodes on a flexible substrate	31
Dual-channel bistability modulation in a bilayer graphene-based optomechanical system	31
Highly circularly polarized and coherent thermal emission based on chiral quasi bound states in the continuum	31
Lithium niobate waveguide-integrated Bi₂Te₃/graphene heterojunction photodetector	31
Temporal dissipative soliton with controllable morphology in a time-delayed coupled optoelectronic oscillator	31
Generation of ultrashort cylindrical vector beams from a Mamyshev oscillator	31
Kilowatt-level supercontinuum generation employing a homemade taper-shaped ytterbium-doped fiber amplifier	31
Boosting photoconductive large-area THz emitter via optical light confinement behind a highly refractive sapphire-fiber lens	31
Enhanced bandwidth distributed acoustic sensing using a frequency multiplexed pulse train and micro-machined point reflector fiber	30
Low loss nested hollow-core anti-resonant fiber at 2 µm spectral range	30
Room-temperature efficient and tunable interlayer exciton emissions in WS₂/WSe₂ heterobilayers at high generation rates	30
Watt-level diode-pumped Tm:YVO₄ laser at 2.3 µm	30
Viewpoint-dependent lighting on polygonal holograms using bump mapping	30
Stokes shift spectroscopy and machine learning for label-free human prostate cancer detection	30
Forecasting the chaotic dynamics of external cavity semiconductor lasers	30
Watt-level gigahertz femtosecond fiber laser system at 920 nm	30
Time-to-brightness converter (TBC): measuring photon arrival time with conventional cameras	30
High precision dual-modulation differential terahertz ATR sensor for liquid measurements	29
Exposure response coefficient of polarization-sensitive media using tensor theory of polarization holography	29
Method for fabricating circular polarization beam splitters based on polarization holography	29
Generation of a vector light field based on polarization holography	29
Diode-pumped CaGdAlO₄ crystal-assisted Kerr-lens mode-locked all-solid-state Pr:LiYF₄ laser at 639 nm	29
Nonreciprocal toroidal dipole resonance and one-way quasi-bound state in the continuum	29
Direct femtosecond laser inscription of an IR fluorotellurite fiber Bragg grating	29
Lensless masked imaging with self-calibrated phase retrieval	29
Non-line-of-sight optical wireless communication system enabled by wavefront shaping for multi-user indoor access	29
Performance and complexity analysis using a sparse deep learning method for indoor terahertz transmission	28
Sensitive ultrawideband transparent PVDF-ITO ultrasound detector for optoacoustic microscopy	28
Thermally tuned VCSEL at 850 nm as a low-cost alternative source for full-eye SS-OCT	28
Polarization phase unwrapping by a dual-wavelength Mueller matrix imaging system	28
Broadband and tunable bandgap guidance based on ring-pattern liquid-filled photonic crystal fibers	28
Deep learning enables confocal laser-scanning microscopy with enhanced resolution	28
Graphene perfect absorber based on degenerate critical coupling of toroidal mode	28
Visible-NIR surface plasmon resonance sensing technology for high precision refractive index detection	28
Light bullets in moiré lattices	28
Low in-band spurious arbitrary waveform generator based on a 1-bit time-wavelength interleaved photonic digital-to-analog conversion	28
Broadband 1.0 µm emission in Nd³⁺/Yb³⁺ co-doped phosphate glasses and fibers for photonic applications	28
Multimode optical switch based on cascaded Mach–Zehnder interferometer waveguides	27
Compact and efficient photonic lanterns through multi-stage tapering	27
Polarization-engineered photon statistics and its tomography via optomagnonic interaction	27
Solid-state transverse Anderson localized fiber laser	27
Depth-enhanced head-mounted light field displays based on integral imaging	27
Sub-60-fs ultralow threshold and efficient Kerr-lens mode-locked Yb,Gd:CaSrF₂ laser	27
Differential coded aperture single-snapshot spectral imaging	27
Non-invasive imaging using a low-spatial-coherence multimode random polymer fiber laser	27
Solid-state laser cooling in Yb:CaF₂ and Yb:SrF₂ by anti-Stokes fluorescence	27

High-brightness holographic projection	27
Tunable and enhanced optical force with bound state in the continuum	27
Simplified coherent chaotic optical secure communication scheme based on the Kramers–Kronig receiver	27
Helically twisted nonlinear photonic crystals	27
Refractometric sensitivity of Bloch surface waves: perturbation theory calculation and experimental validation	26
Low random duty-cycle errors in periodically poled KTP revealed by sum-frequency generation	26
SESAM mode-locked Yb:YAB thin-disk oscillator delivering an average power of 19 W	26
Flatband mode in photonic moiré superlattice for boosting second-harmonic generation with monolayer van der Waals crystals	26
Modified Klyshko method for an analog detector calibration	26
Generation of an ultrahigh-repetition-rate optical half-cycle pulse train in the nested quantum wells	26
Current spreading structure of GaN-based vertical-cavity surface-emitting lasers	26
Sensitivity, precision, and accuracy of fs-LIBS for heavy metal detection in flowing aqueous solutions	26
Ultra-rapid dual-comb ranging with an extended non-ambiguity range	26
Simple approach for extending the ambiguity-free range of dual-comb ranging	26
Space-time-domain observation of high-speed optical beam scanning in a thermo-optic Si photonic crystal slow-light beam scanner	26
Adaptive visible and short-wave infrared camouflage using a dynamically tunable metasurface	26
Spectral linewidth narrowing of broad-area blue diode bar in V-shape external Talbot cavity	26
Dynamic structured illumination for confocal microscopy	26
Multipartite classically entangled scalar beams	26
Terahertz metalens for generating multi-polarized focal points and images with uniform intensity distributions	25
High-speed programmable lithium niobate thin film spatial light modulator	25
Latent image volumetric additive manufacturing	25
Efficient continuous-wave Nd:YVO₄/KGW intracavity Raman laser	25
Three-directional digital shearography based on SLM using a honeycomb-like pattern	25
Tapered tip optical fibers for measuring ultra-small refractive index changes with record high sensitivity	25
Reducing large errors in frequency-scanned phase-sensitive optical time-domain reflectometers using phase cross correlation	25
Optical tuning of dielectric nanoantennas for thermo-optically reconfigurable nonlinear metasurfaces	25
Secure semantic optical communication scheme based on the multi-head attention mechanism	25
Megawatt pulses from an all-fiber and self-starting femtosecond oscillator	25
Sub-millimeter resolution and high-precision φ-OFDR using a complex-domain denoising method	25
Experimental demonstration of acoustically induced polarization-dependent fiber optical vortex inversion	25
Multichannel ±2 order orbital angular momentum mode converter based on an elliptical-core helical intermediate-period fiber grating	24
Directly observing the skew angle of a Poynting vector in an OAM carrying beam via angular diffraction	24
The role of phase–polarization interactions in the laser processing of polarization-sensitive materials	24
Tunable optical matrix convolution of 20-Gbit/s QPSK 2-D data with a kernel using optical wave mixing	24
Color computational ghost imaging based on a generative adversarial network	24
Control of upconversion luminescence by tailoring energy migration in doped perovskite superlattices	24
Heuristic absorption calculation in bilayered media from a white Monte Carlo dataset	24
Fourier spectral shaper assisted feedback for wavelength and linewidth control of cascaded Raman fiber lasers	24
Restoration of motion-blurred numeral image using a complex-amplitude diffractive processor	24
Supercontinuum generation from zinc borate glasses: bandgap versus rare-earth doping	24
Cascade and yoked superfluorescence detected by sum frequency generation spectroscopy	24
Hyperspectral imaging of acoustically trapped plastics	24
Nonlinear upconverted thermal emission through difference frequency generation	24
Mechanically induced enhancement and modulation of upconversion photoluminescence by bending lanthanide-doped perovskite oxides	24
Observing multi-frequency structured illumination patterns based on an evanescent field in a millimeter-scale polymer slide	24
Polarization conversion in anisotropic dielectric metasurfaces originating from bound states in the continuum	23
Sparse 2-D optical phased array with large grating-lobe-free steering range based on an aperiodic grid	23
Exploring the fundamental limits of integrated beam splitters with arbitrary phase via topology optimization	23
Real-time mapping of photo-sono therapy induced cavitation using Doppler optical coherence tomography	23
Effects of excitation power density on the Stern–Volmer constant measurement	23
Photonic reservoir computing using a self-injection locked semiconductor laser under narrowband optical feedback	23
Single-pixel camera based on a spinning mask	23
Continuous programmable mid-infrared thermal emitter and camouflage based on the phase-change material In₃SbTe₂	23
Femtotesla ⁴He magnetometer with a multipass cell	23
Image-free single-pixel object detection	23
Electronically controlled flexible terahertz metasurface based on the loss modulation of strontium titanate	23
Assessment of tight-binding models for high-harmonic generation in zinc blende materials	23
Robust pattern retrieval in an optical Hopfield neural network	23
Multibit NOT logic gate enabled by a function programmable optical waveguide	23
Adaptive real-time single-pixel imaging	23
Hybrid nanophotonic–microfluidic sensor for highly sensitive liquid and gas analyses	23
Ultra-high-Q substrate-mode coupled resonances in complementary THz metamaterial	23
Smart vector-inspired optical vision guiding method for autonomous underwater vehicle docking and formation	23
Cavity design with single-mirror THz frequency tuning for polariton lasers	23
Photorealistic computer generated holography with global illumination and path tracing	23
Edge mode resonance in the dark state by a finite beam	23
Foundry manufacturing of octave-spanning microcombs	23
Sparse single-pixel imaging via optimization in nonuniform sampling sparsity	23
Predicting the eigenstructures of metamaterials with QR-code meta-atoms by deep learning	23
Fano resonance in a dolomite phase-change multilayer design for dynamically tunable omnidirectional monochromatic thermal emission	23
Broadband chaos generation in a distributed-feedback laser by selecting residual side modes	23
Ultra-broadband dual-polarization and arbitrary ratio power splitters based on Bezier curve optimized multimode interference	23
Inverse design of broadband and lossless topological photonic crystal waveguide modes	23
Tailored supercontinuum generation using genetic algorithm optimized Fourier domain pulse shaping	23
Reconfigurable millimeter-range optical binding of dielectric microparticles in hollow-core photonic crystal fiber	23
Research on optical performance of Ln₂O₂S:Er³⁺/Yb³⁺ (Ln = La/Gd/Y) phosphors based on different phonon energies	22
Large dynamic strain measurement via slope-assisted Brillouin optical time domain reflectometry using a frequency equalizer	22
Background suppression for CARS thermometry in highly luminous flames using an electro-optical shutter	22
Coaxial dual-beam wavefront shaping using nonlocal diffractive metasurfaces in terahertz frequencies	22
Efficient single-scattering look-up table for lidar and polarimeter water cloud studies	22
Controllable, intense spectral peaking with a spectral filter and optical fiber	22
Generation of vector vortex beams by axially symmetric sheared polymer network liquid crystals	22
Watt-level 729-nm Pr³⁺:YLF laser pumped by an InGaN laser diode	22
Continuously tunable photonic true-time-delay device for millimeter-wave beamforming	22
Sidelobe-suppressed sub-diffraction-limit quasi-non-diffracting light sheets achieved by super-oscillatory lenses	22
High-fidelity mesoscopic fluorescence molecular tomography based on SSB-Net	22
Concise method for high-precision vibration recovery of Φ-OTDR based on the GF-FastICA algorithm	22
Three-dimensional imaging performance of photoelectrochemical cells	22
Monitoring the evaporation of a sessile water droplet with a chromatic confocal measurement system	22
Electromagnetic induction for reinforced concrete bursting: principles, simulations, experiments, and applications	22
Propagation of higher-order spatiotemporal vortices	22
1645-nm single-frequency vortex laser from an Er:YAG nonplanar ring oscillator	22
Yellow pumped Pr³⁺-doped ZBLAN fiber laser at 1015 nm	22
Effects of interlayer reflection and interpixel interaction in diffractive optical neural networks	22