OOIR: Observatory of International Research

Papers

(The H4-Index of Nature Photonics is 86. 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 2021-04-01 to 2025-04-01.)

Article	Citations
Lasers clean up graffiti	420
Surface ion trap	406
Quantum phase modulator	385
Isamu Akasaki in memoriam	371
Integrated optical entangled quantum vortex emitters	361
Laser nanoprinting of metals	353
Publisher Correction: Optical atomic clock interrogation using an integrated spiral cavity laser	341
Photonics celebrates double Nobel Prize achievement	313
Ultrafast timing enables reconstruction-free positron emission imaging	303
Goodbye Letters	287
Inverse-designed low-index-contrast structures on a silicon photonics platform for vector–matrix multiplication	280
A full degree-of-freedom spatiotemporal light modulator	265
Tailoring microcombs with inverse-designed, meta-dispersion microresonators	250
Vortex laser arrays with topological charge control and self-healing of defects	244
Room-temperature upconverted superfluorescence	234
Nanoscale photon confinement	230
Celebrating entanglement	227
The race for wakefield-driven FELs	215
Petabit optical storage	211
Earth’s wobble probed by 16-m2 underground laser	204
Mid-infrared cascade intraband electroluminescence with HgSe–CdSe core–shell colloidal quantum dots	201
A nondestructive Bell-state measurement on two distant atomic qubits	200
Laser-printed microelectronics	198
Photonics makes a splash underwater	193
Terahertz matters	190

Sheets of light illuminate life sciences	179
Topological orbital angular momentum extraction and twofold protection of vortex transport	175
Intrinsically white organic polarized emissive semiconductors	175
Optical atomic clock interrogation using an integrated spiral cavity laser	172
All-optical image transportation through a multimode fibre using a miniaturized diffractive neural network on the distal facet	172
Experimental photonic quantum memristor	170
Femtojoule femtosecond all-optical switching in lithium niobate nanophotonics	166
Spontaneous pulse formation in edgeless photonic crystal resonators	161
Terahertz matters	156
Author Correction: Hard X-ray transient grating spectroscopy on bismuth germanate	146
Reply to: Reconsidering metasurface lasers	142
Subcycle contact-free nanoscopy of ultrafast interlayer transport in atomically thin heterostructures	140
Publisher Correction: Subradiant directional memory in cooperative scattering	137
Attosecond electron motion control in dielectric	133
Magnetic on–off switching of a plasmonic laser	133
Room-temperature continuous-wave indirect-bandgap transition lasing in an ultra-thin WS2 disk	132
Reconstruction-free positron emission imaging	131
Ultrafast serrodyne optical frequency translator	130
Photonic chips embrace piezo-optomechanics	127
Third-harmonic Mie scattering from semiconductor nanohelices	124
Squeezed light effect	123
Open-source tools enable accessible and advanced image scanning microscopy data analysis	122
Lithography-free reconfigurable integrated photonic processor	121
The knight of holographic displays	120
Spatio-temporal control of incoherent light with metasurfaces	119
Converting qubits	119
Attosecond movies of nano-optical fields	118
Andrew M. Weiner (1958–2024)	117
Ultrabright molecular scintillators enabled by lanthanide-assisted near-unity triplet exciton recycling	117
Brillouin gain microscopy	116
A wireless optoelectronic probe to monitor oxygenation in deep brain tissue	116
Observation of loss-enhanced magneto-optical effect	116
The X-ray science frontier is ultra-short and ultra-intense	113
Single protein imaging with holography	113
Lightning protection by laser	112
Deconvolution enhances fluctuation detection	112
Long-distance quantum key distribution gets real	109
On the simultaneous scattering of two photons by a single two-level atom	108
Optical readout of the chemical potential of two-dimensional electrons	107
Attosecond X-ray laser vision	104
Sub-cycle multidimensional spectroscopy of strongly correlated materials	102
Prospects for free-electron lasers powered by plasma-wakefield-accelerated beams	102
Mechanical anisotropy with Brillouin spectroscopy in one shot	101
Photochemistry democratizes 3D nanoprinting	100
Real-time detection and discrimination of radioactive gas mixtures using nanoporous inorganic scintillators	99
All-optical polarization switching in ferroelectrics	99
Optical pumping of electronic quantum Hall states with vortex light	98
Vibrational imaging goes deeper and finer	98
Excitonic resonances control the temporal dynamics of nonlinear optical wave mixing in monolayer semiconductors	98
The diamond voltage microscope	98

Lithography-free reconfigurable photonic processor	96
Bose–Einstein condensation of photons in a vertical-cavity surface-emitting laser	95
Strain-induced Landau levels in photonic crystals	95
Small tunable X-ray sources may have large impact	94
Excitons surf the waves	90
Brillouin light scattering anisotropy microscopy for imaging the viscoelastic anisotropy in living cells	89
Author Correction: Scattering invariant modes of light in complex media	89
Turning single molecule vibrations into visible light	89
Interaction and co-assembly of optical and topological solitons	87
Hard X-ray helical dichroism of disordered molecular media	87
Joseph A. Izatt (1962–2024)	86
Coherently amplified ultrafast imaging using a free-electron interferometer	86
In memory of Watt Wetmore Webb	86