OOIR: Observatory of International Research

Papers

(The TQCC of Optics Letters is 7. 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 2021-06-01 to 2025-06-01.)

Article	Citations
Methods of correction to extrinsic parameters in a stereoscopic vision with the assistance of two known-distance points	172
Helically twisted nonlinear photonic crystals	157
Coulomb potential determining terahertz polarization in a two-color laser field	113
Orthogonal hologram memory extending from visible to UV mediated with TaO_x/TiO₂:Ag heterojunctions	102
Flatbands in a bilayer surface plasmon crystal at a large twist angle due to interlayer strong coupling	97
Bifocal lenses with adjustable intensities enabled by bilayer liquid crystal structures	97
Construction of multiple anti-resonant light guidance mechanisms in a hollow-core fiber structure for simultaneous measurement of multiple parameters	79
Solid-state transverse Anderson localized fiber laser	79
Resonant silicon waveguide with strong transverse electric field rotation for magnetic-field-induced non-reciprocity	78
Observing multi-frequency structured illumination patterns based on an evanescent field in a millimeter-scale polymer slide	77
Viewpoint-dependent lighting on polygonal holograms using bump mapping	74
Mirrored transformation optics	73
Broadband generation of quasi bound-state-in-continuum modes using subwavelength truncated cone resonators	72
Non-line-of-sight optical wireless communication system enabled by wavefront shaping for multi-user indoor access	69
Efficient unidirectional SPP launcher: coupling the SPP to a smooth surface for propagation	69
Efficient continuous-wave Nd:YVO₄/KGW intracavity Raman laser	68
Coaxial dual-beam wavefront shaping using nonlocal diffractive metasurfaces in terahertz frequencies	66
Enhancing THz emission from nonlinear metasurfaces by a Bragg perfect absorber	64
Quasi-distributed acoustic sensing based on optical path difference demodulation for high-frequency and large-amplitude using an optical fiber interferometer array	64
Utilizing quantitative phase microscopy to localize fluorescence in three dimensions via the transport of intensity equation	64
Phase noise elimination in frequency sweeping interferometry based on a common-path interferometer	61
High-sensitivity strain sensor based on a helical-core long-period fiber grating	58
Single-shot multi-color fluorescence microscopy via a colorimetry camera	56
High-energy Q-switched 16-core tapered rod-type fiber laser system	56
Extending mid-infrared wavelength to 6.84 μm in oxide nonlinear optical crystal via birefringence dispersion management	54

Fast rate dual-comb spectrometer in the water-transparent 7.5–11.5 µm region	53
Lithium niobate waveguide-integrated Bi₂Te₃/graphene heterojunction photodetector	52
High-quality factor Ta₂O₅-on-insulator resonators with ultimate thermal stability	51
Coherent multi-band MIMO radar: robustness analysis to SSMF-based RF signal delivery	50
Geometry optimization of cantilever-based optical microphones	50
High-throughput multiplexed fluorescence lifetime microscopy	49
Wavelength extension beyond 3 µm in a Ho³⁺/Pr³⁺ co-doped AlF₃-based fiber laser	49
Long range topography by dispersion unmatched spectral-domain interferometry based on virtually imaged phased array modes	48
Non-Hermitian mode-locking synthesized by parity-time and anti-parity-time symmetric modulations	48
Experimental demonstration of an on-chip spatial light receiver based on inverse design in free-space optical communication	48
Polarization-insensitive vortex beam generator by the holographic grating on an integrated multi-layer waveguide	48
Control of spectral shift, broadening, and pulse compression during mid-IR self-guiding in high-pressure gases and their mixtures	47
Ultra-broadband dual-polarization and arbitrary ratio power splitters based on Bezier curve optimized multimode interference	47
Longitudinal manipulation of local nonseparability in vector beams	47
Robust pattern retrieval in an optical Hopfield neural network	47
Modeling of ultraviolet propagation from air to human epidermis with wavelength range of 200–300 nm	46
Modified Mach–Zehnder interferometer for spatial coherence measurement	45
Transmitter dispersion eye closure quaternary assessment based on linear CNN with 1 × 1 convolutional kernel	45
Ultracompact and ultralow-loss S-bends with easy fabrication by numerical optimization	45
Compact effective surface plasmon polariton transmission line with undiminished bandwidth and enhanced field confinement	44
Heterogeneous integration of an on-chip Nd:YAG whispering gallery mode laser with a lithium-niobate-on-insulator platform	44
1.9 µJ external-cavity dumped ultra-broad-area semiconductor nanosecond laser	44
Self-frequency shift of AlN-on-sapphire Kerr solitons	44
Resonant optical effects in composite Co/opal-based magnetoplasmonic structures	43
Coherent N₂ ⁺ emission mediated by coherent Raman scattering for gas-phase thermometry	43
Handheld volumetric photoacoustic/ultrasound imaging using an internal scanning mechanism	43
Complexity curtailed MLSE equalizer based on a compact look-up-table for C-band DSB IM/DD transmission	43
Enhanced bandwidth distributed acoustic sensing using a frequency multiplexed pulse train and micro-machined point reflector fiber	43
Dynamic control of the mode-locked fiber laser using a GO/PS modulator	43
Directly observing the skew angle of a Poynting vector in an OAM carrying beam via angular diffraction	43
Optical phased array with 2D beam steering based on nonlinear beam mixing	43
Accelerating the phase demodulation process for heterodyne Φ-OTDR using spatial phase shifting	43
Asymmetric steering of phonon polaritons based on bilayer metagratings	43
Phase-coded coherent microwave pulse generation based on an actively mode-locked optoelectronic parametric oscillator	41
Secure semantic optical communication scheme based on the multi-head attention mechanism	41
Photoacoustic computational ghost imaging	41
Learning-enabled data transmission with up to 32 multiplexed orbital angular momentum channels through a commercial multi-mode fiber	41
Mitigating nonlinear penalty induced from a low-speed optical supervisory channel on coherent signals	40
Efficient single-scattering look-up table for lidar and polarimeter water cloud studies	40
Geometric-phase-based axicon lens for computational achromatic imaging	40
Imaginary coupling induced Dirac points and group velocity control in the non-reciprocal Hermitian lattice	40
Dual-channel bistability modulation in a bilayer graphene-based optomechanical system	40
Volterra predistorter for the dynamic nonlinearity of LED	39
Observation of rotational coherence in an excited state of CO⁺	39
Rogue wave generation using a chaotic semiconductor laser with energy redistribution	39
Suppression of modulation instability in VCSEL by external optical injection	38
Slotted surface gratings fabricated by selective area growth of the p-InP cladding layer for BH lasers	38
Vortex ring beams in nonlinear P T-symmetric systems	38
Actively Q-switched self-frequency-doubled Yb:YCOB green laser with output power of a dozen watts	38
Mechanically induced enhancement and modulation of upconversion photoluminescence by bending lanthanide-doped perovskite oxides	37

Broadband decoupled spin and orbital angular momentum detection via programming dual-twist reactive mesogens	37
Femtosecond laser inscribed helical sapphire fiber Bragg gratings	37
In vivo biological safety investigation of Yb-CALGO femtosecond laser dental surgery	37
Optimized adaptation algorithms for low-complexity adaptive equalizers	37
Theoretical investigation of pure-state single-photon and large-bandwidth-correlation biphoton generation from micro/nanofiber	37
Cross-domain heterogeneous metasurface inverse design based on a transfer learning method	37
Active, controlled circular, and spin-rotational movement of optically trapped airborne micro-particles	36
Temporally stable fiber amplifier pumped random distributed feedback Raman fiber laser with record output power	36
Quadratic strong coupling in AlN Kerr cavity solitons	35
Efficient temporal compression of 10-μJ pulses in periodic layered Kerr media: publisher’s note	35
3D trapping of microbubbles by the Marangoni force	35
Hyperspectral imaging of acoustically trapped plastics	35
Non-invasive imaging using a low-spatial-coherence multimode random polymer fiber laser	35
Optomagnetism with a plasmonic skyrmion	35
Watt-level gigahertz femtosecond fiber laser system at 920 nm	35
Nonlinear Airy beam propagation in defected photonic lattices	34
Exceptional-point-enhanced nanoparticle sensor utilizing a linewidth broadening mechanism	34
Unified Stokes–Mueller polarimetry for multi-photon processes at varying wavelengths	34
Coherently averaged optical frequency comb spectroscopy with a single electro-optic modulator	34
Alleviation of DC drift in a thin-film lithium niobate modulator utilizing Ar⁺ ion milling	34
Liquid drop interferometry on reflective surfaces	34
Fast polarization independent tunable liquid crystal Solc filter using Sagnac configuration	34
Single-crystal CsPbBr₃-based vertical cavity surface emitting laser	34
Design of compact surface-emitting nanolasers based on topological guided-mode resonance	33
High-SNR, high- repetition-rate, compact, picosecond, mid-infrared optical parametric oscillator pumped synchronously by a harmonic mode-locked fiber laser	33
Ultra-compact diode-pumped single-frequency Ti:sapphire laser	33
Background-reduced spectral peak generation using a nonlinear loop mirror with a gas cell	33
Theory of χ⁽²⁾-microresonator-based frequency conversion	33
Line integral compressed ultrafast photography for large time-scale measurements	32
Raman spectroscopy with a microfluidic device embedded with plasmonic metasurface	32
Monolithic all-silicon flat lens for broadband LWIR imaging	32
Rapid fabrication of highly uniform polygons by femtosecond laser patterning based on free lens modulation	32
High-speed spectral imaging via multispectral pulse illumination and temporal–spectral decoupling	32
Incoherent two-color pulse compounds	32
Ultra-compact multimode waveguide bend based on a central width controllable dual Bezier structure	32
High-numerical-aperture and high-efficiency polarization-based metalenses with pitch size control utilizing silicon-rich nitride	32
Augmented space signal detection method for IM/DD optical communication systems	31
Single-element balanced detector giving 65 dB CMRR at 30 MHz	31
Bipolar segmented photonic digital-to-analog converter with wavelength multiplexing and balanced detection	31
Tunable acousto-optic optical frequency combs	31
Computational refocusing in phase-unstable polarization-sensitive optical coherence tomography	31
Interferometric measurement of arbitrary propagating vector beams that are tightly focused	31
Narrow linewidth distributed feedback lasers utilizing distributed phase shift	31
High-precision multi-spectral radiation thermometry method based on the improved gray wolf optimization algorithm inversion: comment	31
Generation of 200 fs optical vortex pulses with 12 MW peak power from a Yb-doped fiber amplifier	31
Photoacoustic maximum amplitude projection microscopy by ultra-low data sampling	31
Wavefront shaping for reconfigurable beam steering in lithium niobate multimode waveguide	31
A 1.6 µm dual-channel cylindrical vector laser enabling multi-state shift keying	31
Ring-focused light fields generated through a liquid-crystal module assisted by embedded aluminum concentric cylinders driven electrically	31
Experimental quantum natural gradient optimization in photonics	31
Cepstrum-based interferometric microscopy with rolling-shutter cameras	31
Route to pure-quartic solitons in the mid-infrared	30
All-solid-state 3-µm single-frequency Er:CaF₂ laser with a stable and switchable wavelength	30
GaN-based green resonant-cavity light-emitting diodes with Al mirror and copper plate	30
Compact fiber-integrated scattering device based on mixed-phase TiO₂ for speckle spectrometer	30
Shack–Hartmann wavefront sensor slope measurement algorithm robust to scintillation and sensor saturation	30
End-to-end learning of joint noise shaping and probabilistic shaping for OAM mode division multiplexing transmission	30
Multilayer dielectric metalens	30
Compressive phase-shifting fringe projection profilometry for accelerating 3D metrology	30
Dual-angle rotation two-dimensional wavelet transform profilometry	29
Absolute test for flat surfaces by shifted and rotated maps with yaw angle monitored	29
Rewritable photonic integrated circuits using dielectric-assisted phase-change material waveguides	29
High-efficiency thermo-optic control of a longitudinal radiation angle in a silicon-based optical phased array by leveraging the backside air trench structure	29
Magnetic tuning with minimal thermal drift in high-Q microspheres coated with magnetorheological polydimethylsiloxane	29
Virtual atom–photon bound states and spontaneous emission control	29
MOPA laser system with a 4-channel Yb:YAG single-rod amplifier and coherent beam combining	29
Motion-resistant structured illumination microscopy based on principal component analysis	29
Ultra-low-latency 3D measurement with a 1D approximate de Bruijn pattern	29
Incoherent computer-generated holography	29
Erbium-doped ZBLAN fiber laser pumped at 1.7 µm for emission at 2.8 µm	29
Multi-gigahertz femtosecond pulses from linear and nonlinear propagation of a phase-modulated laser	29
Integrated orbital angular momentum mode sorters on vortex fibers	29
Predicting the largest Lyapunov exponent of chaotic optically injected lasers by machine learning	29
Pincushion point-spread function for computer-generated holography	28
Learning-based adaptive under-sampling for Fourier single-pixel imaging	28
Maximizing the forward scattering of dielectric nanoantennas through surface impedance coatings	28
Efficient first-order quasi-phase-matched backward second-harmonic generation	28
Polarization-multiplexing metafiber for dual-mode bright-field and dark-field microscopy	28
Improved Camshift algorithm based on ECA-ResNet model for laser spot tracking in UOWC systems	28
Single-photon vibrometry	28

Governance of Friedrich–Wintgen bound states in the continuum by tuning the internal coupling of meta-atoms	28
Feed-forward neural network as nonlinear dynamics integrator for supercontinuum generation	28
Fano resonance in a dolomite phase-change multilayer design for dynamically tunable omnidirectional monochromatic thermal emission	28
Monocular line scan vision-based surface defect detection approach for highly reflective bearing balls	28
Continuous spectrum of periodically stationary pulses in a stretched-pulse laser	28
Coherence–orbital angular momentum matrix of non-uniformly correlated sources	28
Infrared-blocking plasmonic meta-glass for energy-saving passive windows	28
Energy disturbance-induced collision between soliton molecules and switch dynamics in fiber lasers: periodic collision, oscillation, and annihilation	27
Bistable soliton optical frequency combs in a second-harmonic generation Kerr cavity	27
Mobile full-duplex deep-ultraviolet light communication network	27
Light Assisted Precise Control of Micro-Cavity Lasers for Lead Halide Perovskite Nanorods	27
High-efficiency grating coupler for an ultralow-loss Si₃N₄-based platform	27
Lensless masked imaging with self-calibrated phase retrieval	27
Photonic extreme learning machine based on phase-sensitive optical-time-domain reflectometry of Rayleigh scattering from a long fiber	27
Flatband mode in photonic moiré superlattice for boosting second-harmonic generation with monolayer van der Waals crystals	27
High-precision laser beam lateral displacement measurement based on differential wavefront sensing	27
Chiral enantiomer recognition of amino acids enhanced by terahertz spin beam separation based on a Pancharatnam–Berry metasurface	27
Broadband 1.0 µm emission in Nd³⁺/Yb³⁺ co-doped phosphate glasses and fibers for photonic applications	27
Characterization of photon combination pathways for harmonic generation from indium tin oxide thin films	27
Azimuthally polarized picosecond vector beam with 1.7 kW of average output power	27
Direct imaging of a photonic jet at shaped fiber tips	27
Multi-exposure interferometric diffusing wave spectroscopy	27
Efficient and compact source of tuneable ultrafast deep ultraviolet laser pulses at 50 kHz repetition rate	27
One-step formation of a plasmonic grating with an ultranarrow resonance linewidth for sensing	27
Short, broadband, and polarization-insensitive adiabatic Y-junction power splitters	27
Ultralow 0.034 dB/m loss wafer-scale integrated photonics realizing 720 million Q and 380 μW threshold Brillouin lasing	27
A silicon source of frequency-bin entangled photons	27
Cascade MIR Ho:YLF laser at 2.1 µm and 2.9 µm	27
Femtotesla ⁴He magnetometer with a multipass cell	27
Asymmetric transmission devices empowered by a cascaded structure of a dielectric metasurface-photonic crystal	27
Design of a frequency-multiplexed metasurface with asymmetric transmission	27
Active tuning of dispersive waves in Kerr soliton combs	27
Ultrahigh return loss LPFGs fabricated via femtosecond laser direct writing of ultrashort TFBGs	27
High-fidelity mesoscopic fluorescence molecular tomography based on SSB-Net	27
Ultra-compact hybrid multimode division multiplexer based on photonics crystal nanobeam	27
Tunable high energy pulse generation in the range of 2.9–3.6 μm enabled by an actively Q switched Er³⁺/Dy³⁺ codoped fluoride fiber oscillator	26
Phase-matching-free ultrashort laser pulse characterization from a transient plasma lens	26
Intense white-light emission of amorphous lead chloride trimers at high pressure	26
Iterative phase retrieval algorithm for space-variant PSFs in optical systems with aberrations	26
Chargeable photoconductivity in van der Waals heterojunctions of black phosphorus and quasi-two-dimensional electron gas	26
Fabricating and investigating a beveled mesa with a specific inclination angle to improve electrical and optical performances for GaN-based micro-light-emitting diodes	26
Exposure response coefficient of polarization-sensitive media using tensor theory of polarization holography	26
Brightness and purity of a room-temperature single-photon source in the blue–green range	26
Polarization multiplexing silicon photonic optical phased array with a wide scanning range	26
Heterogeneous integration of GaInAsSb–GaSb photodiodes on SOI photonic integrated circuits for SWIR applications	26
Multiband topological states in the Penrose-triangle photonic crystals	26
Optofluidic SERS based on Ag nanocubes with high sensitivity for detecting a prevalent water pollutant	26
Experimental demonstration of visualized multi-core fiber coupling alignment system for inter-core cross talk measurement	26
Yb:GdScO₃ crystal for efficient ultrashort pulse lasers	26
High-resolution 3D nanoprinting based on two-step absorption via an integrated fiber-coupled laser diode	26
Wavelength-tunable and high-heralding-efficiency quantum photon source in a birefringent phase-matched lithium niobate waveguide	26
Visibly transparent multifunctional camouflage coating with efficient thermal management	26
Multiple topological states within a common bandgap of two non-trivial photonic crystals	26
Cryogenic temperature sensing based on the temperature dependence of color centers in optical fibers	25
Turbulence-resilient pilot-assisted self-coherent free-space optical communications using a photodetector array for bandwidth enhancement	25
Mode-division multiplexing for visible photonic integrated circuits	25
Masked autoencoder for highly compressed single-pixel imaging	25
Ultra-sensitive luminescence ratiometric thermometry from ²E→⁴A₂ transitions of AlTaO₄:Cr³⁺	25
Quasi-coherent perfect absorption of counter-propagating vector beams of finite spatial extent through an absorptive slab	25
710 kW stable average power in a 45,000 finesse two-mirror optical cavity	25
Experimental study on the dynamic mechanical response of a blue light-stimulated acrylate side chain liquid crystal elastomer	25
Bistable response and quasi-periodicity excitation of the internal dynamics of soliton molecules	25
Fiber-bundle-based 2D Raman and Rayleigh imaging for major species and temperature measurement in laminar flames	25
Remote referencing strategy for high-resolution coded ptychographic imaging	25
Hybrid lithium tantalite-silicon integrated photonics platform for electro-optic modulation	25
Attosecond-precision balanced timing detector with a single photodiode	25
Yb:Lu₂O₃ single-crystal fiber: spectroscopy, amplification, and lasing	25
Compact tomographic near-eye display using a MEMS scanning mirror	25
Polarization-insensitive 40-channel 100-GHz spacing fold-back planar echelle grating Mux/Demux for photonic integrated wavelength-selective switches	25
Photon detection at 1 ns time intervals using 16-element SNSPD array with SFQ multiplexer	25
Multi-viewpoint tampering detection for integral imaging	25
Enabling endogenous distributed acoustic sensing in a digital subcarrier coherent transmission system	25
Depletion-limited Kerr solitons in singly resonant optical parametric oscillators	24
Soliton-effect compression of picosecond pulses on a photonic chip	24
Enhanced sensitivity of optical fiber vibration sensor based on radio-frequency Michelson interferometer	24
RF-controlled mode-locking and optoelectronic pulse compressing with distributed selectable wavelengths	24
Chaotic dimension enhancement by optical injection into a semiconductor laser under feedback	24
Enhancing light extraction efficiency of 242 nm DUV micro-LEDs via hybrid nanorod arrays	24
Engineering spatial correlations of entangled photon pairs by pump beam shaping	24
Correction of a transcranial acoustic field using a transient ultrasound field visualization technique	24
Sub-micrometer direct laser writing using an optimized binary-amplitude zone plate lens	24
Compound meta-atoms enabling ultra-compact multiband optical manipulation	24
Illumination color-coded and neural network decoding for snapshot hyperspectral imaging	24
Stimulated downconversion of single-photon emission in a quantum dot placed in a target-frequency microcavity	24
Tunable optical frequency comb with hundred-GHz spacings generated on a silicon waveguide	24
High-entropy chaos generation using semiconductor lasers subject to intensity-modulated optical injection for certified physical random number generation	24
Simple few-shot method for spectrally resolving the wavefront of an ultrashort laser pulse	24
Platicon stability in hot cavities	24
Object-independent wavefront sensing method based on an unsupervised learning model for overcoming aberrations in optical systems	24
Strain modulation of photocurrent in Weyl semimetal TaIrTe₄	24
165 MHz highly stable femtosecond Er:ZBLAN fiber laser operating at 2.8 µm	24
Generation of ultra-low jitter radio frequency phase pulses by a phase-locked oscillator	24
Tunable VUV frequency comb for ^229mTh nuclear spectroscopy	24
Fractional orbital angular momentum conversion in second-harmonic generation with an asymmetric perfect vortex beam	24
Realization of low-cross-talk half-wavelength pitch waveguide array on a silicon-on-insulator platform	24