OOIR: Observatory of International Research

Papers

(The median citation count of Optics Letters is 3. 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 2020-11-01 to 2024-11-01.)

Article	Citations
High-speed computer-generated holography using an autoencoder-based deep neural network	124
AlGaN-based deep ultraviolet micro-LED emitting at 275 nm	115
Efficient erbium-doped thin-film lithium niobate waveguide amplifiers	96
On-chip tunable microdisk laser fabricated on Er³⁺-doped lithium niobate on insulator	91
H-shaped acoustic micro-resonator-based quartz-enhanced photoacoustic spectroscopy	88
Symmetric metasurface with dual band polarization-independent high-Q resonances governed by symmetry-protected BIC	85
Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell	82
Reaching fiber-laser coherence in integrated photonics	78
Spectral broadening of 112 mJ, 1.3 ps pulses at 5 kHz in a LG₁₀ multipass cell with compressibility to 37 fs	73
Low-loss edge-coupling thin-film lithium niobate modulator with an efficient phase shifter	73
InGaN quantum well with gradually varying indium content for high-efficiency GaN-based green light-emitting diodes	71
Tunable 3D Dirac-semimetals supported mid-IR hybrid plasmonic waveguides	71
Coupled cavity-waveguide based on topological corner state and edge state	69
1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system	69
Hollow-core resonator fiber optic gyroscope using nodeless anti-resonant fiber	67
Fast Mueller matrix microscope based on dual DoFP polarimeters	67
Acoustic microresonator based in-plane quartz-enhanced photoacoustic spectroscopy sensor with a line interaction mode	67
1.1 J Yb:YAG picosecond laser at 1 kHz repetition rate	66
Multipass cell for high-power few-cycle compression	65
Enhanced light extraction of the deep-ultraviolet micro-LED via rational design of chip sidewall	59
Broadband silicon nitride nanophotonic phased arrays for wide-angle beam steering	59
Multi-pass quartz-enhanced photoacoustic spectroscopy-based trace gas sensing	57
Super tiny quartz-tuning-fork-based light-induced thermoelastic spectroscopy sensing	57
Silicon photonic microelectromechanical phase shifters for scalable programmable photonics	57
161 W middle infrared ZnGeP₂ MOPA system pumped by 300 W-class Ho:YAG MOPA system	57

DNN-FZA camera: a deep learning approach toward broadband FZA lensless imaging	56
Wide-angle polarization selectivity based on anomalous defect mode in photonic crystal containing hyperbolic metamaterials	56
Digital holographic deep learning of red blood cells for field-portable, rapid COVID-19 screening	56
15 W monolithic fiber laser at 3.55 µm	54
Quartz-enhanced photoacoustic spectroscopy sensing using trapezoidal- and round-head quartz tuning forks	53
Ultralow 0.034 dB/m loss wafer-scale integrated photonics realizing 720 million Q and 380 μW threshold Brillouin lasing	53
Bound states in the continuum supported by silicon oligomer metasurfaces	53
Optical analog computing of two-dimensional spatial differentiation based on the Brewster effect	53
Investigation of InGaN-based red/green micro-light-emitting diodes	52
Trace gas sensing based on single-quartz-enhanced photoacoustic–photothermal dual spectroscopy	51
Topological bimeronic beams	51
Experimental demonstration of high-rate discrete-modulated continuous-variable quantum key distribution system	50
Switchable and spacing tunable dual-wavelength spatiotemporal mode-locked fiber laser	50
Simple technique of coupling a diode laser into a linear power buildup cavity for Raman gas sensing	50
Mach–Zehnder silicon-photonic switch with low random phase errors	50
Efficient second-harmonic generation in high Q-factor asymmetric lithium niobate metasurfaces	49
High-speed electro-optic modulator based on silicon nitride loaded lithium niobate on an insulator platform	49
2 Gbps free-space ultraviolet-C communication based on a high-bandwidth micro-LED achieved with pre-equalization	49
Electro-optically tunable microring laser monolithically integrated on lithium niobate on insulator	48
High sensitivity multitasking non-reciprocity sensor using the photonic spin Hall effect	48
Chaotic optical communications at 56 Gbit/s over 100-km fiber transmission based on a chaos generation model driven by long short-term memory networks	47
Adaptive sigmoid-like and PReLU activation functions for all-optical perceptron	47
Real-time demonstration of 103.125-Gbps fiber–THz–fiber 2 × 2 MIMO transparent transmission at 360–430 GHz based on photonics	47
70 mJ nonlinear compression and scaling route for an Yb amplifier using large-core hollow fibers	47
Resonance-trapped bound states in the continuum in metallic THz metasurfaces	46
Multifunctional optical fiber sensor for simultaneous measurement of temperature and salinity	46
On-chip erbium-doped lithium niobate microring lasers	45
Aberration-free pupil steerable Maxwellian display for augmented reality with cholesteric liquid crystal holographic lenses	44
Analog-digital hybrid chaos-based long-haul coherent optical secure communication	44
Full-field real-time characterization of creeping solitons dynamics in a mode-locked fiber laser	43
Highly efficient thermo-optic tunable micro-ring resonator based on an LNOI platform	43
Topological rainbow based on graded topological photonic crystals	43
Gas-plasma-based generation of broadband terahertz radiation with 640 mW average power	43
IPLNet: a neural network for intensity-polarization imaging in low light	43
17.8 fs broadband Kerr-lens mode-locked Yb:CALGO oscillator	42
Entangled photons from subwavelength nonlinear films	42
Steering non-Hermitian skin modes by synthetic gauge fields in optical ring resonators	42
Wavelength-scanning lensfree on-chip microscopy for wide-field pixel-super-resolved quantitative phase imaging	42
Tunable single-mode laser on thin film lithium niobate	42
Optical tuning of dielectric nanoantennas for thermo-optically reconfigurable nonlinear metasurfaces	42
Power stable 1.5–10.5 µm cascaded mid-infrared supercontinuum laser without thulium amplifier	41
Efficient electro-optical modulation on thin-film lithium niobate	41
Electrically pumped widely tunable O-band hybrid lithium niobite/III-V laser	41
Beyond 25 Gbps optical wireless communication using wavelength division multiplexed LEDs and micro-LEDs	41
Simultaneous generation of the second- and third-order OAM modes by using a high-order helical long-period fiber grating	41
Deep neural network for modeling soliton dynamics in the mode-locked laser	41
Differential integrating sphere-based photoacoustic spectroscopy gas sensing	41
Tunable metamaterial-based silicon waveguide	41
Two-step phase-shifting interferometry for self-interference digital holography	40
New temperature measurement method based on light-induced thermoelastic spectroscopy	40

Full-color micro-LED display based on a single chip with two types of InGaN/GaN MQWs	40
Magnetic wire: transverse magnetism in a one-dimensional plasmonic system	40
150 J DPSSL operating at 1.5 kW level	39
Abruptly autofocusing circular swallowtail beams	39
Simultaneous refractive index and temperature sensing based on a fiber surface waveguide and fiber Bragg gratings	39
Phase-change metasurface with tunable and switchable circular dichroism	39
Thin-disk laser system operating above 10 kW at near fundamental mode beam quality	39
Hybrid-integrated diode laser in the visible spectral range	39
5 kW monolithic fiber amplifier employing homemade spindle-shaped ytterbium-doped fiber	38
Weakly nonlinear topological gap solitons in Su–Schrieffer–Heeger photonic lattices	38
Conversion efficiency of soliton Kerr combs	38
Symmetric Pearcey Gaussian beams	38
Terahertz spin-selective perfect absorption enabled by quasi-bound states in the continuum	38
Dynamically reversible and strong circular dichroism based on Babinet-invertible chiral metasurfaces	38
Particle swarm optimization of silicon photonic crystal waveguide transition	37
Orbital angular momentum beams generation from 61 channels coherent beam combining femtosecond digital laser	37
Room temperature mid-infrared fiber lasing beyond 5 µm in chalcogenide glass small-core step index fiber	37
Active beam manipulation and convolution operation in VO₂-integrated coding terahertz metasurfaces	37
Linear array focused-laser differential interferometry for single-shot multi-point flow disturbance measurements	37
Hollow-waveguide-based light-induced thermoelastic spectroscopy sensing	37
Flexible autofocusing properties of ring Pearcey beams by means of a cross phase	37
Depth-enhanced head-mounted light field displays based on integral imaging	37
Radial-cavity quartz-enhanced photoacoustic spectroscopy	37
Confocal air-coupled ultrasonic optical coherence elastography probe for quantitative biomechanics	37
High-efficiency chirped grating couplers on lithium niobate on insulator	37
On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator	37
Symmetry-breaking bifurcations and ghost states in the fractional nonlinear Schrödinger equation with a PT-symmetric potential	36
High-performance, compact optical standard	36
Parallel emitted silicon nitride nanophotonic phased arrays for two-dimensional beam steering	35
Sub-50 fs pulse generation from a SESAM mode-locked Tm,Ho-codoped calcium aluminate laser	35
Megawatt pulses from an all-fiber and self-starting femtosecond oscillator	35
Femtosecond laser auto-positioning direct writing of a multicore fiber Bragg grating array for shape sensing	35
Mechanical sharing dual-comb fiber laser based on an all-polarization-maintaining cavity configuration	35
Coherent chaotic optical communication of 30 Gb/s over 340-km fiber transmission via deep learning	35
Demonstration of a compact, multi-joule, diode-pumped Tm:YLF laser	35
Lensless full-color holographic Maxwellian near-eye display with a horizontal eyebox expansion	34
Passive polarimetric imaging of millimeter and terahertz waves for personnel security screening	34
Pulsating dynamics in a pure-quartic soliton fiber laser	34
3D printing of silica glass through a multiphoton polymerization process	34
Precision glass molding of diffractive optical elements with high surface quality	34
Realization of tunable edge-enhanced images based on computing metasurfaces	34
Frequency comb generation in a pulse-pumped normal dispersion Kerr mini-resonator	34
Intrinsic amplitude-noise suppression in fiber lasers mode-locked with nonlinear amplifying loop mirrors	33
Wide-field-of-view optical detectors using fused fiber-optic tapers	33
Ultrafast 3.5 µm fiber laser	33
Yb:GdScO₃ crystal for efficient ultrashort pulse lasers	33
Non-diffracting and self-accelerating Bessel beams with on-demand tailored intensity profiles along arbitrary trajectories	33
Terahertz image super-resolution based on a complex convolutional neural network	33
Thermally induced generation of platicons in optical microresonators	33
Rainbow trapping based on higher-order topological corner modes	33
Enhanced ablation efficiency using GHz bursts in micromachining fused silica	33
High-efficiency second harmonic generation of blue light on thin-film lithium niobate	32
Waveguide-type Maxwellian near-eye display using a pin-mirror holographic optical element array	32
Color computational ghost imaging based on a generative adversarial network	32
Power-over-fiber in a 10 km long multicore fiber link within a 5G fronthaul scenario	32
Combined multi-band infrared camouflage and thermal management via a simple multilayer structure design	32
Predictability, distinguishability, and entanglement	32
Microwave pulse generation via employing an electric signal modulator to achieve time-domain mode locking in an optoelectronic oscillator	32
Nonreciprocal absorber with a narrow band of angular polarization sensitive regions based on a quasi-periodic structure	32
Snapshot temporal compressive microscopy using an iterative algorithm with untrained neural networks	32
Radiative loss control of an embedded silicon perfect absorber in the visible region	31
Nonlinear calibration of frequency modulated continuous wave LIDAR based on a microresonator soliton comb	31
Photoswitchable stimulated Raman scattering spectroscopy and microscopy	31
Spatial and frequency-selective optical field coupling absorption in an ultra-thin random metasurface	31
Semiconductor saturable absorber mirror in the 3–5 µm mid-infrared region	31
Low-power and high-speed 2 × 2 thermo-optic MMI-MZI switch with suspended phase arms and heater-on-slab structure	31
Multiband topological states in non-Hermitian photonic crystals	31
Single-frequency integrated laser on erbium-doped lithium niobate on insulator	31
Ultra-flat, low-noise, and linearly polarized fiber supercontinuum source covering 670–1390 nm	31
Continuous chirped-wave phase-sensitive optical time domain reflectometry	31
Design and simulation of a GST-based metasurface with strong and switchable circular dichroism	30
Optimization of computer-generated holograms featuring phase randomness control	30
Reconfigurable terahertz switch using flexible L-shaped metamaterial	30
3D printed hybrid refractive/diffractive achromat and apochromat for the visible wavelength range	30
32 Gb/s physical-layer secure optical communication over 200 km based on temporal dispersion and self-feedback phase encryption	30
Simultaneous measurement of refractive index and temperature based on a side-polish and V-groove plastic optical fiber SPR sensor	30
Coherent synthetic aperture imaging for visible remote sensing via reflective Fourier ptychography	30
10-W-scale Kerr-lens mode-locked Yb:CALYO laser with sub-100-fs pulses	30
Efficient point-by-point Bragg grating inscription in sapphire fiber using femtosecond laser filaments	30
Experimental demonstration of optical trapping and manipulation with multifunctional metasurface	30

Nonlocal magnon entanglement generation in coupled hybrid cavity systems	30
C-band 67 GHz silicon photonic microring modulator for dispersion-uncompensated 100 Gbaud PAM-4	29
Folded thin-film lithium niobate modulator based on a poled Mach–Zehnder interferometer structure	29
Random fiber laser based on a partial-reflection random fiber grating for high temperature sensing	29
GeSn lateral p-i-n waveguide photodetectors for mid-infrared integrated photonics	29
Switchable imaging between edge-enhanced and bright-field based on a phase-change metasurface	29
Sub-five-optical-cycle pulse generation from a Kerr-lens mode-locked Yb:CaYAlO₄ laser	29
Optical phased array neural probes for beam-steering in brain tissue	29
Electro-optic reconfigurable two-mode (de)multiplexer on thin-film lithium niobate	29
Ultrahigh-sensitivity displacement sensing enabled by the Vernier effect with inhibited antiresonance	29
Unfiltered holography: optimizing high diffraction orders without optical filtering for compact holographic displays	29
Experimental quantum entanglement and teleportation by tuning remote spatial indistinguishability of independent photons	29
Phase-shifted demodulation technique with additional modulation based on a 3 × 3 coupler and EFA for the interrogation of fiber-optic interferometric sensors	28
Simultaneous measurement of temperature and acoustic impedance based on forward Brillouin scattering in LEAF	28
Raman pure quartic solitons in Kerr microresonators	28
Long wavelength operation of a dysprosium fiber laser for polymer processing	28
Isotropic topological second-order spatial differentiator operating in transmission mode	28
Integrated room temperature single-photon source for quantum key distribution	28
Multimode Mamyshev oscillator	28
Heterogeneously integrated III–V-on-lithium niobate broadband light sources and photodetectors	28
Spiraling Laguerre–Gaussian solitons and arrays in parabolic potential wells	28
End-to-end learned single lens design using fast differentiable ray tracing	28
Tunable dual-channel ultra-narrowband Bragg grating filter on thin-film lithium niobate	28
Extending the L-band amplification to 1623 nm using Er/Yb/P co-doped phosphosilicate fiber	28
Reversible lateral optical force on phase-gradient metasurfaces for full control of metavehicles	28
PAExM: label-free hyper-resolution photoacoustic expansion microscopy	28
Microwave-photonic optical fiber interferometers for refractive index sensing with high sensitivity and a tunable dynamic range	27
Design of opposite thermal behaviors in Tm³⁺/Eu³⁺ co-doped YVO₄ for high-sensitivity optical thermometry	27
Terahertz liquid crystal programmable metasurface based on resonance switching	27
Laser microprocessing of metal surfaces using a tightly focused radially polarized beam	27
Low gas pressure sensor based on a polymer optical fiber grating	27
Ultra-compact and broadband silicon polarizer employing a nanohole array structure	27
152 km-range single-ended distributed acoustic sensor based on inline optical amplification and a micromachined enhanced-backscattering fiber	27
Long-period fiber grating based on inner microholes in optical fiber	27
Brightness enhancement in random Raman fiber laser based on a graded-index fiber with high-power multimode pumping	27
Thermal control of a Kerr microresonator soliton comb via an optical sideband	27
3D time-domain beam mapping for studying nonlinear dynamics in multimode optical fibers	27
Complete polarization conversion using anisotropic temporal slabs	27
Spectrally separable photon-pair generation in dispersion engineered thin-film lithium niobate	27
Phase change material enabled 2 × 2 silicon nonvolatile optical switch	27
Lensless phase retrieval based on deep learning used in holographic data storage	27
Ultra-high extinction ratio polarization beam splitter with extreme skin-depth waveguide	27
Controllable propagation paths of gap solitons	26
Single-pixel ptychography	26
Color polarization demosaicking by a convolutional neural network	26
Tunable optical vortex array in a two-dimensional electromagnetically induced atomic lattice	26
Photorealistic computer generated holography with global illumination and path tracing	26
Plasmonic tapered-fiber interference sensor for simultaneously detecting refractive index and temperature	26
Miniature all-optical flexible forward-viewing photoacoustic endoscopy probe for surgical guidance	26
Two-dimensional vector accelerometer based on orthogonal Bragg gratings inscribed in a standard single-mode fiber cladding	26
Unidirectional-emitting GaN-based micro-LED for 3D display	26
Design of broadband and wide-field-of-view metalenses	26
Active optical modulation of quasi-BICs in Si–VO₂ hybrid metasurfaces	26
Two-octave-wide (3–12 µm) subharmonic produced in a minimally dispersive optical parametric oscillator cavity	26
High-throughput screening of a high-Q mid-infrared Tamm emitter by material informatics	26
High-Q quadrupolar plasmonic lattice resonances in horizontal metal–insulator–metal gratings	26
Large-mode-area all-solid anti-resonant fiber with single-mode operation for high-power fiber lasers	26
W-band simultaneous vector signal generation and radar detection based on photonic frequency quadrupling	26
Buildup dynamics of a pulsating dissipative soliton in an all-normal-dispersion PM Yb-doped fiber laser with a NALM	26
Ultra-broadband 3 dB power splitter from 1.55 to 2 µm wave band	26
Holographic super multi-view Maxwellian near-eye display with eyebox expansion	25
Light-field multi-spectral radiation thermometry	25
Underwater image restoration via Stokes decomposition	25
Single-shot wide-field topography measurement using spectrally multiplexed reflection intensity holography via space-domain Kramers–Kronig relations	25
22.5-W narrow-linewidth diamond Brillouin laser at 1064 nm	25
Thermal noise reduction in soliton microcombs via laser self-cooling	25
Ultra-high sensitivity strain sensor based on biconical fiber with a bulge air-bubble	25
Multispectral compressive fluorescence lifetime imaging microscopy with a SPAD array detector	25
Ultrafast laser-inscribed nanogratings in sapphire for geometric phase elements	25
Interplay of sidewall damage and light extraction efficiency of micro-LEDs	25
On-chip ytterbium-doped lithium niobate microdisk lasers with high conversion efficiency	25
Compact high-flux hard X-ray source driven by femtosecond mid-infrared pulses at a 1 kHz repetition rate	25
High sensitivity Ge-on-Si single-photon avalanche diode detectors	24
Actively tunable bi-functional metamirror in a terahertz band	24
Examining the optical model of graphene via the photonic spin Hall effect	24
2.3 W monolithic fiber laser operating in the visible	24
Multiband topological states in the Penrose-triangle photonic crystals	24
Kerr-lens mode-locked Tm-doped sesquioxide ceramic laser	24
Quasi-bound states in the continuum in metal complementary periodic cross-shaped resonators at terahertz frequencies	24
Bound states in the continuum enable modulation of light intensity in the Faraday configuration	24
OFDM-NOMA combined with LFM signal for W-band communication and radar detection simultaneously	24
Boltzmann-distribution-dominated persistent luminescence ratiometric thermometry in NaYF₄:Pr³⁺	24
Localized modes and dark solitons sustained by nonlinear defects	24
Optimized shift-pattern overlay for high coupling efficiency waveguide grating couplers	24
Millimeter-long metamaterial surface-emitting antenna in the silicon photonics platform	24
Distributed fiber optic sensing with enhanced sensitivity based on microwave-photonic Vernier effect	24
Structural-color nanoprinting with hidden watermarks	24
All-fiber single-cavity dual-comb for coherent anti-Stokes Raman scattering spectroscopy based on spectral focusing	24
Watt-level visible laser in double-clad Pr³⁺-doped fluoride fiber pumped by a GaN diode	24
Simple quantum key distribution using a stable transmitter-receiver scheme	24
Broadband second-harmonic generation in step-chirped periodically poled lithium niobate waveguides	24
Is a complete Mueller matrix necessary in biomedical imaging?	24
44-fs pulse generation at 2.05 µm from a SESAM mode-locked Tm:GdScO₃ laser	23
Coexistence of quantum key distribution and optical transport network based on standard single-mode fiber at high launch power	23
Latent image volumetric additive manufacturing	23