OOIR: Observatory of International Research

Papers

(The H4-Index of Nature Photonics is 82. 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 2020-04-01 to 2024-04-01.)

Article	Citations
Photonics for artificial intelligence and neuromorphic computing	755
Comprehensive defect suppression in perovskite nanocrystals for high-efficiency light-emitting diodes	597
Structured light	571
Deep learning for the design of photonic structures	521
Terahertz topological photonics for on-chip communication	452
Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission	452
Hybrid integrated quantum photonic circuits	410
Organic light emitters exhibiting very fast reverse intersystem crossing	348
High-efficiency, long-lifetime deep-blue organic light-emitting diodes	341
Fast spin-flip enables efficient and stable organic electroluminescence from charge-transfer states	337
A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator	312
Large-scale neuromorphic optoelectronic computing with a reconfigurable diffractive processing unit	267
Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high-Q microresonators	267
Stable and low-photovoltage-loss perovskite solar cells by multifunctional passivation	265
Suppression of temperature quenching in perovskite nanocrystals for efficient and thermally stable light-emitting diodes	262
Test of general relativity by a pair of transportable optical lattice clocks	246
Overcoming the energy gap law in near-infrared OLEDs by exciton–vibration decoupling	245
Twin-field quantum key distribution over 830-km fibre	244
Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence	244
Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells	243
Generating optical vortex beams by momentum-space polarization vortices centred at bound states in the continuum	242
Efficient and bright white light-emitting diodes based on single-layer heterophase halide perovskites	234
High-purity orbital angular momentum states from a visible metasurface laser	233
High-power portable terahertz laser systems	231
Perovskite-filled membranes for flexible and large-area direct-conversion X-ray detector arrays	231

Photonic microwave generation in the X- and K-band using integrated soliton microcombs	229
Integrated optical frequency comb technologies	223
Machine learning and applications in ultrafast photonics	221
NIR II-responsive photon upconversion through energy migration in an ytterbium sublattice	219
Metasurface optics for on-demand polarization transformations along the optical path	214
CsPbBr3 perovskite detectors with 1.4% energy resolution for high-energy γ-rays	213
Photonics and thermodynamics concepts in radiative cooling	198
Prospects for metal halide perovskite-based tandem solar cells	198
Efficient selenium-integrated TADF OLEDs with reduced roll-off	197
Metasurfaces for quantum photonics	196
Strain-engineered high-responsivity MoTe2 photodetector for silicon photonic integrated circuits	171
Solution-processed green and blue quantum-dot light-emitting diodes with eliminated charge leakage	157
Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas	154
Sub-nanometre resolution in single-molecule photoluminescence imaging	152
Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring	140
A compact and cost-effective hard X-ray free-electron laser driven by a high-brightness and low-energy electron beam	140
Generalized Kramers–Kronig receiver for coherent terahertz communications	139
Advances in solution-processed near-infrared light-emitting diodes	138
Exceptionally stable blue phosphorescent organic light-emitting diodes	136
600-km repeater-like quantum communications with dual-band stabilization	135
Sensitive, small, broadband and scalable optomechanical ultrasound sensor in silicon photonics	135
Ultrastable near-infrared perovskite light-emitting diodes	131
A wavelength-scale black phosphorus spectrometer	131
Large-area perovskite solar cells employing spiro-Naph hole transport material	129
Optical soliton formation controlled by angle twisting in photonic moiré lattices	127
Detecting ionizing radiation using halide perovskite semiconductors processed through solution and alternative methods	124
The role of host–guest interactions in organic emitters employing MR-TADF	123
Bright and stable light-emitting diodes made with perovskite nanocrystals stabilized in metal–organic frameworks	120
Digital photoprogramming of liquid-crystal superstructures featuring intrinsic chiral photoswitches	119
The pure-quartic soliton laser	117
Defect engineering in wide-bandgap perovskites for efficient perovskite–silicon tandem solar cells	116
Achieving the full-wavelength phase-matching for efficient nonlinear optical frequency conversion in C(NH2)3BF4	115
Nanoscale terahertz scanning probe microscopy	114
Synthetic helical dichroism for six-dimensional optical orbital angular momentum multiplexing	113
Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate	111
Ultra-fast germanium photodiode with 3-dB bandwidth of 265 GHz	109
Electrically driven acousto-optics and broadband non-reciprocity in silicon photonics	107
Ultrapure green organic light-emitting diodes based on highly distorted fused π-conjugated molecular design	105
Cation disorder engineering yields AgBiS2 nanocrystals with enhanced optical absorption for efficient ultrathin solar cells	101
Characterization of stability and challenges to improve lifetime in perovskite LEDs	101
Mid-infrared semimetal polarization detectors with configurable polarity transition	101
Pockels soliton microcomb	99
Low-chirp isolator-free 65-GHz-bandwidth directly modulated lasers	99
Ultrahigh-resolution quantum-dot light-emitting diodes	98
Exceptional polarization purity in antiresonant hollow-core optical fibres	97
Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths	96
High-speed programmable photonic circuits in a cryogenically compatible, visible–near-infrared 200 mm CMOS architecture	95
Composite fast scintillators based on high-Z fluorescent metal–organic framework nanocrystals	94
A photonic integrated quantum secure communication system	93
Electrically driven mid-submicrometre pixelation of InGaN micro-light-emitting diode displays for augmented-reality glasses	92

Real-space observation of vibrational strong coupling between propagating phonon polaritons and organic molecules	91
Dissipative solitons in photonic molecules	91
Efficient photoinduced second-harmonic generation in silicon nitride photonics	88
Photochemical upconversion of near-infrared light from below the silicon bandgap	88
Structured illumination microscopy using a photonic chip	86
Intensity-based holographic imaging via space-domain Kramers–Kronig relations	83
MINSTED fluorescence localization and nanoscopy	82