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
High-speed silicon microring modulator at the 2 µm waveband with analysis and observation of optical bistability	75
Toward high-bandwidth yellow-green micro-LEDs utilizing nanoporous distributed Bragg reflectors for visible light communication	75
Controllable split polarization singularities for ultra-precise displacement sensing	72
Turn-key Voigt optical frequency standard	68
Separation and imaging of mixed signals on microwave chips based on nitrogen-vacancy color center microscopy	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
Optical neural networks based on perovskite solar cells	66
Universal silicon ring resonator for error-free transmission links	66
Tailoring directional chiral emission from molecules coupled to extrinsic chiral quasi-bound states in the continuum	65
Broadband NIR-emitting Te cluster-doped glass for smart light source towards night-vision and NIR spectroscopy applications	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 single-photon upconversion spectroscopy based on temporal-spectral quantum correlation	57
Mid-infrared broadband optical frequency comb generated in MgF₂ resonators	57
Speckle spatial correlations aiding optical transmission matrix retrieval: the smoothed Gerchberg–Saxton single-iteration algorithm	56
Monolithic dispersion engineered mid-infrared quantum cascade laser frequency comb	54
Fourier ptychographic microscopy aided with transport of intensity equation for robust full phase spectrum reconstruction	54
Performance improvement approaches for optical fiber SPR sensors and their sensing applications	53
Slide-free histological imaging by microscopy with ultraviolet surface excitation using speckle illumination	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
Coexisting valley and pseudo-spin topological edge states in photonic topological insulators made of distorted Kekulé lattices	50
Spin-dependent terahertz wavefront shaping based on hybrid phase in all-silicon chiral metasurfaces	50
Synthetic aperture metalens	49
Circularly polarized lasing from chiral metal-organic frameworks	49
Octave-spanning frequency comb generation based on a dual-mode microcavity laser	49
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
Single-shot 3D tracking based on polarization multiplexed Fourier-phase camera: erratum	48