OOIR: Observatory of International Research

Papers

(The H4-Index of Photonics Research is 47. 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 2022-05-01 to 2026-05-01.)

Article	Citations
All-in-one photoelectric logic gates by Dember photodetectors	306
Fourier domain mode-locked optoelectronic oscillator with an electrically tuned thin-film lithium niobate micro-ring filter	262
Flat-field superoscillation metalens	192
Gap solitons in parity–time symmetric moiré optical lattices	124
20.2 W monolithic 3.5 μm fiber laser system using actively temperature-tuned femtosecond laser inscribed FBGs	98
Single-objective two-photon oblique light sheet microscopy with a low repetition rate for 3D high-SNR imaging	96
Tailoring directional chiral emission from molecules coupled to extrinsic chiral quasi-bound states in the continuum	90
Optically pumped low-threshold microdisk lasers on a GeSn-on-insulator substrate with reduced defect density	87
Large anisotropic steady-state and temporal optical response in a van der Waals crystal NbOI₂	86
Nearly 70 Gbit/s NRZ-OOK encoding of a dual-mode 850 nm VCSEL with a highly In-doped and small Zn-diffused emission area	85
Single-pixel super-resolution with a space–time modulated computational metasurface imager	77
Optical neural networks based on perovskite solar cells	77
Separation and imaging of mixed signals on microwave chips based on nitrogen-vacancy color center microscopy	76
Monocular depth estimation based on deep learning for intraoperative guidance using surface-enhanced Raman scattering imaging	76
Turn-key Voigt optical frequency standard	75
Integrating InP membranes on silicon-on-insulator via tunnel epitaxy for silicon photonics	72
Particle delivery in generalized optical vortex conveyor belts with a uniform orbital flow	72
Mid-infrared broadband optical frequency comb generated in MgF₂ resonators	72
Toward high-bandwidth yellow-green micro-LEDs utilizing nanoporous distributed Bragg reflectors for visible light communication	71
Round-trip multi-band quantum access network	71
Optoelectronic hybrid oscillating fiber-optic sensor with attosecond precision and reconfigurable sensitivity	69
Bichromatically pumped artificial cnoidal wave breathers in optical microresonators	67
Dispersion-engineered subwavelength grating microring resonator for high-sensitivity and wide-range on-chip sensing	66
Mid-infrared single-photon upconversion spectroscopy based on temporal-spectral quantum correlation	63
Metasurface-integrated vertical-cavity surface-emitting lasers with adaptive beam control for high-temperature stable operation	62

Silicon-based optical phased array with a reconfigurable aperture for “gaze” scanning of LiDAR	62
Insight into the photoinduced phenomena in ternary Ge-Sb-Se sputtered thin films	61
Monolithic dispersion engineered mid-infrared quantum cascade laser frequency comb	60
Hole–pillar coupled structure: a universal design model for two-dimensional gratings fabricated by dual-beam interference lithography	59
Time-varying classical local entanglement of ultrafast vector light pulses	58
Universal silicon ring resonator for error-free transmission links	58
Origin of SBS-induced mode distortion in high power narrow linewidth fiber amplifiers	58
Fully reconfigurable silicon photonic MEMS microring resonators for DWDM	57
Attosecond waveform engineering via spectral–temporal coupled high-harmonic generation	56
Controllable split polarization singularities for ultra-precise displacement sensing	56
Speckle spatial correlations aiding optical transmission matrix retrieval: the smoothed Gerchberg–Saxton single-iteration algorithm	54
Fourier ptychographic microscopy aided with transport of intensity equation for robust full phase spectrum reconstruction	53
Unlocking high-speed and high-resolution photonic-swept microwave frequency identification via the ringing effect	53
Giantly enhancing harmonic generations by a moiré superlattice nanocavity	53
Electron-beam-driven anomalous Doppler effects in Smith–Purcell radiation	52
On-chip sorting of orbital angular momentum beams using Bloch surface wave structures	50
Electrically controlled strain tuning of spin defects in a hybrid 4H-silicon carbide-on-lithium niobate integrated platform	50
Tapered fiber coupling of nanoparticle-coated silica microspheres for multi-wavelength upconversion whispering gallery mode lasers	50
Polygon search algorithm for ultra-compact multifunctional integrated photonics design	49
Electron–phonon coupling enhanced by graphene/PZT heterostructure for infrared emission and optical information transmission	49
Nonlinear spectral-temporal manipulation for chirp-free pulse synthesis at picosecond resolution	48
Probing phase transition of band topology via radiation topology	47
Demonstration of optomechanical gyroscope for high-precision angular motion detection	47
Temporal modulation and frame-differencing enhanced high-density super-resolution optical fluctuation imaging	47
Burst-mode pulse generation in passively mode-locked all-fiber green/orange lasers at 543 nm and 602 nm	47
Direct measurement of topological invariants in photonic superlattices	47