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 2021-10-01 to 2025-10-01.)

Article	Citations
Optically pumped low-threshold microdisk lasers on a GeSn-on-insulator substrate with reduced defect density	227
Fourier ptychographic microscopy aided with transport of intensity equation for robust full phase spectrum reconstruction	198
Bichromatically pumped artificial cnoidal wave breathers in optical microresonators	156
All-in-one photoelectric logic gates by Dember photodetectors	130
Active stabilization of terahertz waveforms radiated from a two-color air plasma	119
Monocular depth estimation based on deep learning for intraoperative guidance using surface-enhanced Raman scattering imaging	116
Speckle spatial correlations aiding optical transmission matrix retrieval: the smoothed Gerchberg–Saxton single-iteration algorithm	114
Tapered fiber coupling of nanoparticle-coated silica microspheres for multi-wavelength upconversion whispering gallery mode lasers	98
High-speed silicon microring modulator at the 2 µm waveband with analysis and observation of optical bistability	92
Flat-field superoscillation metalens	81
Electron-beam-driven anomalous Doppler effects in Smith–Purcell radiation	77
On-chip sorting of orbital angular momentum beams using Bloch surface wave structures	73
Controllable split polarization singularities for ultra-precise displacement sensing	72
Turn-key Voigt optical frequency standard	71
Silicon-based optical phased array with a reconfigurable aperture for “gaze” scanning of LiDAR	70
Slide-free histological imaging by microscopy with ultraviolet surface excitation using speckle illumination	69
Toward high-bandwidth yellow-green micro-LEDs utilizing nanoporous distributed Bragg reflectors for visible light communication	69
Monolithic dispersion engineered mid-infrared quantum cascade laser frequency comb	68
Optical neural networks based on perovskite solar cells	67
Broadband NIR-emitting Te cluster-doped glass for smart light source towards night-vision and NIR spectroscopy applications	65
Hole-Pillar Coupled Structure: A Universal Design Model for Two-Dimensional Gratings Fabricated by Dual-Beam Interference Lithography	65
Performance improvement approaches for optical fiber SPR sensors and their sensing applications	64
Single-pixel super-resolution with a space–time modulated computational metasurface imager	62
Mid-infrared broadband optical frequency comb generated in MgF₂ resonators	60
Integrating InP membranes on silicon-on-insulator via tunnel epitaxy for silicon photonics	60

Gap solitons in parity–time symmetric moiré optical lattices	59
Separation and imaging of mixed signals on microwave chips based on nitrogen-vacancy color center microscopy	58
Tailoring directional chiral emission from molecules coupled to extrinsic chiral quasi-bound states in the continuum	58
Giantly enhancing harmonic generations by a moiré superlattice nanocavity	58
Enhanced performance of a fast GaAs-based terahertz modulator via surface passivation	58
Fully reconfigurable silicon photonic MEMS microring resonators for DWDM	55
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	54
Universal silicon ring resonator for error-free transmission links	54
Origin of SBS-induced mode distortion in high power narrow linewidth fiber amplifiers	53
Dispersion-engineered subwavelength grating microring resonator for high-sensitivity and wide-range on-chip sensing	53
Optoelectronic hybrid oscillating fiber-optic sensor with attosecond precision and reconfigurable sensitivity	53
Mid-infrared single-photon upconversion spectroscopy based on temporal-spectral quantum correlation	52
Insight into the photoinduced phenomena in ternary Ge-Sb-Se sputtered thin films	52
Fourier domain mode-locked optoelectronic oscillator with an electrically tuned thin-film lithium niobate micro-ring filter	52
Round-trip multi-band quantum access network	51
Particle delivery in generalized optical vortex conveyor belts with a uniform orbital flow	51
Burst-mode pulse generation in passively mode-locked all-fiber green/orange lasers at 543 nm and 602 nm	50
Time-varying classical local entanglement of ultrafast vector light pulses	50
Polygon search algorithm for ultra-compact multifunctional integrated photonics design	49
Light-field micro-endoscopy using a fiber bundle: a snapshot 3D epi-fluorescence endoscope	49
Electron–phonon coupling enhanced by graphene/PZT heterostructure for infrared emission and optical information transmission	49
Spin-dependent terahertz wavefront shaping based on hybrid phase in all-silicon chiral metasurfaces	48
Continuous-wave III-V micro-ring lasers with position-controlled vertical QWs laterally integrated on SOI	48
Virtual fluorescence labeling of mitochondria in phase images using a network with unpaired dataset	48
Directional emission in X-cut lithium niobate microresonators without chaos dynamics	48