OOIR: Observatory of International Research

Papers

(The H4-Index of Photonics Research is 48. 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 2021-08-01 to 2025-08-01.)

Article	Citations
Flat-field superoscillation metalens	208
Optically pumped low-threshold microdisk lasers on a GeSn-on-insulator substrate with reduced defect density	175
Active stabilization of terahertz waveforms radiated from a two-color air plasma	142
Quantitative in situ measurement of optical force along a strand of cleaved silica optical fiber induced by the light guided therewithin	116
Bichromatically pumped artificial cnoidal wave breathers in optical microresonators	111
Silicon-based optical phased array with a reconfigurable aperture for “gaze” scanning of LiDAR	107
All-in-one photoelectric logic gates by Dember photodetectors	107
Monocular depth estimation based on deep learning for intraoperative guidance using surface-enhanced Raman scattering imaging	89
Optoelectronic hybrid oscillating fiber-optic sensor with attosecond precision and reconfigurable sensitivity	85
Single-pixel super-resolution with a space–time modulated computational metasurface imager	84
Round-trip multi-band quantum access network	81
Origin of SBS-induced mode distortion in high power narrow linewidth fiber amplifiers	77
Toward high-bandwidth yellow-green micro-LEDs utilizing nanoporous distributed Bragg reflectors for visible light communication	75
High-speed silicon microring modulator at the 2 µm waveband with analysis and observation of optical bistability	75
Controllable split polarization singularities for ultra-precise displacement sensing	72
Separation and imaging of mixed signals on microwave chips based on nitrogen-vacancy color center microscopy	68
Turn-key Voigt optical frequency standard	68
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	67
Fully reconfigurable silicon photonic MEMS microring resonators for DWDM	67
Universal silicon ring resonator for error-free transmission links	66
Optical neural networks based on perovskite solar cells	66
Broadband NIR-emitting Te cluster-doped glass for smart light source towards night-vision and NIR spectroscopy applications	65
Tailoring directional chiral emission from molecules coupled to extrinsic chiral quasi-bound states in the continuum	65
Dye-sensitized Er³⁺-doped CaF₂ nanoparticles for enhanced near-infrared emission at 1.5 μm	64
Giantly Enhancing Harmonic Generations by a Moiré Superlattice Nanocavity	64

On-chip sorting of orbital angular momentum beams using Bloch surface wave structures	63
Electron-beam-driven anomalous Doppler effects in Smith–Purcell radiation	63
Tapered fiber coupling of nanoparticle-coated silica microspheres for multi-wavelength upconversion whispering gallery mode lasers	62
Fourier domain mode-locked optoelectronic oscillator with an electrically tuned thin-film lithium niobate micro-ring filter	61
Enhanced performance of a fast GaAs-based terahertz modulator via surface passivation	61
Particle delivery in generalized optical vortex conveyor belts with a uniform orbital flow	60
Gap solitons in parity–time symmetric moiré optical lattices	59
Insight into the photoinduced phenomena in ternary Ge-Sb-Se sputtered thin films	59
Mid-infrared broadband optical frequency comb generated in MgF₂ resonators	57
Mid-infrared single-photon upconversion spectroscopy based on temporal-spectral quantum correlation	57
Speckle spatial correlations aiding optical transmission matrix retrieval: the smoothed Gerchberg–Saxton single-iteration algorithm	56
Fourier ptychographic microscopy aided with transport of intensity equation for robust full phase spectrum reconstruction	54
Monolithic dispersion engineered mid-infrared quantum cascade laser frequency comb	54
Slide-free histological imaging by microscopy with ultraviolet surface excitation using speckle illumination	53
Performance improvement approaches for optical fiber SPR sensors and their sensing applications	53
Generation of continuous-variable high-dimensional entanglement with three degrees of freedom and multiplexing quantum dense coding	51
Direct measurement of topological invariants in photonic superlattices	51
Spin-dependent terahertz wavefront shaping based on hybrid phase in all-silicon chiral metasurfaces	50
Coexisting valley and pseudo-spin topological edge states in photonic topological insulators made of distorted Kekulé lattices	50
Octave-spanning frequency comb generation based on a dual-mode microcavity laser	49
Synthetic aperture metalens	49
Circularly polarized lasing from chiral metal-organic frameworks	49
Single-shot 3D tracking based on polarization multiplexed Fourier-phase camera: erratum	48
High-harmonic generation in submicron-thick chirped periodically poled thin-film lithium niobate	48
Burst-mode pulse generation in passively mode-locked all-fiber green/orange lasers at 543 nm and 602 nm	48
Probing phase transition of band topology via radiation topology	48