OOIR: Observatory of International Research

Papers

(The H4-Index of Optics Letters is 45. 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
Methods of correction to extrinsic parameters in a stereoscopic vision with the assistance of two known-distance points	116
Coulomb potential determining terahertz polarization in a two-color laser field	110
Orthogonal hologram memory extending from visible to UV mediated with TaO_x/TiO₂:Ag heterojunctions	101
Flatbands in a bilayer surface plasmon crystal at a large twist angle due to interlayer strong coupling	99
Bifocal lenses with adjustable intensities enabled by bilayer liquid crystal structures	82
Construction of multiple anti-resonant light guidance mechanisms in a hollow-core fiber structure for simultaneous measurement of multiple parameters	82
Solid-state transverse Anderson localized fiber laser	80
Resonant silicon waveguide with strong transverse electric field rotation for magnetic-field-induced non-reciprocity	75
Observing multi-frequency structured illumination patterns based on an evanescent field in a millimeter-scale polymer slide	75
Viewpoint-dependent lighting on polygonal holograms using bump mapping	74
Mirrored transformation optics	72
Broadband generation of quasi bound-state-in-continuum modes using subwavelength truncated cone resonators	71
Quasi-distributed acoustic sensing based on optical path difference demodulation for high-frequency and large-amplitude using an optical fiber interferometer array	70
Coaxial dual-beam wavefront shaping using nonlocal diffractive metasurfaces in terahertz frequencies	70
Efficient unidirectional SPP launcher: coupling the SPP to a smooth surface for propagation	70
Enhancing THz emission from nonlinear metasurfaces by a Bragg perfect absorber	68
Phase noise elimination in frequency sweeping interferometry based on a common-path interferometer	67
High-energy Q-switched 16-core tapered rod-type fiber laser system	61
Extending mid-infrared wavelength to 6.84 μm in oxide nonlinear optical crystal via birefringence dispersion management	59
Single-shot multi-color fluorescence microscopy via a colorimetry camera	59
Lithium niobate waveguide-integrated Bi₂Te₃/graphene heterojunction photodetector	58
High-quality factor Ta₂O₅-on-insulator resonators with ultimate thermal stability	54
Coherent multi-band MIMO radar: robustness analysis to SSMF-based RF signal delivery	53
Long range topography by dispersion unmatched spectral-domain interferometry based on virtually imaged phased array modes	53
High-throughput multiplexed fluorescence lifetime microscopy	53

Experimental demonstration of an on-chip spatial light receiver based on inverse design in free-space optical communication	53
Polarization-insensitive vortex beam generator by the holographic grating on an integrated multi-layer waveguide	52
Non-Hermitian mode-locking synthesized by parity-time and anti-parity-time symmetric modulations	51
Robust pattern retrieval in an optical Hopfield neural network	50
Longitudinal manipulation of local nonseparability in vector beams	50
Control of spectral shift, broadening, and pulse compression during mid-IR self-guiding in high-pressure gases and their mixtures	50
Transmitter dispersion eye closure quaternary assessment based on linear CNN with 1 × 1 convolutional kernel	49
Ultracompact and ultralow-loss S-bends with easy fabrication by numerical optimization	49
Modeling of ultraviolet propagation from air to human epidermis with wavelength range of 200–300 nm	49
1.9 µJ external-cavity dumped ultra-broad-area semiconductor nanosecond laser	48
Optical phased array with 2D beam steering based on nonlinear beam mixing	48
Self-frequency shift of AlN-on-sapphire Kerr solitons	48
Compact effective surface plasmon polariton transmission line with undiminished bandwidth and enhanced field confinement	48
Coherent N₂ ⁺ emission mediated by coherent Raman scattering for gas-phase thermometry	47
Complexity curtailed MLSE equalizer based on a compact look-up-table for C-band DSB IM/DD transmission	47
Phase-coded coherent microwave pulse generation based on an actively mode-locked optoelectronic parametric oscillator	46
Dynamic control of the mode-locked fiber laser using a GO/PS modulator	46
Handheld volumetric photoacoustic/ultrasound imaging using an internal scanning mechanism	46
Geometric-phase-based axicon lens for computational achromatic imaging	45
Mitigating nonlinear penalty induced from a low-speed optical supervisory channel on coherent signals	45
Learning-enabled data transmission with up to 32 multiplexed orbital angular momentum channels through a commercial multi-mode fiber	45