OOIR: Observatory of International Research

Papers

(The TQCC of IEEE Transactions on Terahertz Science and Technology is 4. 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 2020-11-01 to 2024-11-01.)

Article	Citations
Terahertz Communications: Challenges in the Next Decade	143
Properties and Sensing Performance of All-Dielectric Metasurface THz Absorbers	65
A D-Band Manifold Triplexer With High Isolation Utilizing Novel Waveguide Dual-Mode Filters	58
Characteristics of Effective-Medium-Clad Dielectric Waveguides	52
InP-Based THz Beam Steering Leaky-Wave Antenna	45
A High-Power Terahertz Source Over 10 mW at 0.45 THz Using an Active Antenna Array With Integrated Patch Antennas and Resonant-Tunneling Diodes	36
Wideband Multimode Leaky-Wave Feed for Scanning Lens-Phased Array at Submillimeter Wavelengths	34
Resonant Tunneling Diodes High-Speed Terahertz Wireless Communications - A Review	34
Terahertz Switchable Focusing Planar Lens With a Nanoscale Vanadium Dioxide Integrated Metasurface	30
Hollow Core Inhibited Coupled Antiresonant Terahertz Fiber: A Numerical and Experimental Study	30
A 250-GHz Differential SiGe Amplifier With 21.5-dB Gain for Sub-THz Transmitters	30
Highly Tunable Heterodyne Sub-THz Wireless Link Entirely Based on Optoelectronics	26
Frequency-Selective-Surface-Based Mechanically Reconfigurable Terahertz Bandpass Filter	25
A 250–310 GHz Power Amplifier With 15-dB Peak Gain in 130-nm SiGe BiCMOS Process for Terahertz Wireless System	24
Phase Function Effects on Identification of Terahertz Spectral Signatures Using the Discrete Wavelet Transform	22
Beam Profiling of a Commercial Lens-Assisted Terahertz Time Domain Spectrometer	21
Secure Communication Channels Using Atmosphere-Limited Line-of-Sight Terahertz Links	21
Classification for Glucose and Lactose Terahertz Spectrums Based on SVM and DNN Methods	20
High-Q THz Photonic Crystal Cavity on a Low-Loss Suspended Silicon Platform	20
124.8-Gbit/s PS-256QAM Signal Wireless Delivery Over 104 m in a Photonics-Aided Terahertz-Wave System	20
Complex Permittivity Measurement of Dielectric Substrate in Sub-THz Range	20
Terahertz Metamaterial Optoelectronic Modulators With GHz Reconfiguration Speed	17
Analysis of Intermolecular Weak Interactions and Vibrational Characteristics for Vanillin and Ortho-Vanillin by Terahertz Spectroscopy and Density Functional Theory	17
A 670 GHz Integrated InP HEMT Direct-Detection Receiver for the Tropospheric Water and Cloud Ice Instrument	17
A 3.5-THz, ×6-Harmonic, Single-Ended Schottky Diode Mixer for Frequency Stabilization of Quantum-Cascade Lasers	17

Terahertz Band-Pass Filters for Wideband Superconducting On-Chip Filter-Bank Spectrometers	17
Contactless RF Probe Interconnect Technology Enabling Broadband Testing to the Terahertz Range	16
Broadband Sensing Around 1 THz Via a Novel Biquad-Antenna-Coupled Low-NEP Detector in CMOS	16
A 1.42-mm² 0.45–0.49 THz Monostatic FMCW Radar Transceiver in 90-nm SiGe BiCMOS	16
A 3-D Printed 300 GHz Waveguide Cavity Filter by Micro Laser Sintering	16
Application of Machine Learning to Terahertz Spectroscopic Imaging of Reagents Hidden By Thick Shielding Materials	15
High-Performance Wideband Double-Ridged Waveguide OMT for the 275–500 GHz Band	15
Deep Learning Optimized Terahertz Single-Pixel Imaging	14
Quasioptical System for Corneal Sensing at 220–330 GHz: Design, Evaluation, and Ex Vivo Cornea Parameter Extraction	14
A Zero Bias J-Band Antenna-Coupled Detector in 65-nm CMOS	14
Millimeter-Wave Wideband Waveguide Power Divider With Improved Isolation Between Output Ports	14
The Radiation Beamline of Novosibirsk Free-Electron Laser Facility Operating in Terahertz, Far-Infrared, and Mid-Infrared Ranges	14
Terahertz PHASR Scanner With 2 kHz, 100 ps Time-Domain Trace Acquisition Rate and an Extended Field-of-View Based on a Heliostat Design	14
Broadband 400-GHz InGaAs mHEMT Transmitter and Receiver S-MMICs	13
Two-Dimensional Terahertz Beam Steering Based on Trajectory Deflection of Leaky-Mode	13
A Focusing Circular-Polarization THz Beam Splitter Based on a Self-Complementary Metasurface	13
A Low-Loss Silicon MEMS Phase Shifter Operating in the 550-GHz Band	13
Bifunctional Terahertz Metasurface for Transmissive Broadband Linear-to-Circular and Linear Polarization Conversion	13
Strain-Induced InGaAs-Based Photoconductive Terahertz Antenna Detector	12
A Tunable Unidirectional Source for GUSTO’s Local Oscillator at 4.74 THz	12
Wideband Modeling of CMOS Schottky Barrier Diode Detectors for THz Radiometry	11
Extraction of Thickness and Water-Content Gradients in Hydrogel-Based Water-Backed Corneal Phantoms Via Submillimeter-Wave Reflectometry	11
The Sub-THz Emission of the Human Body Under Physiological Stress	11
A Compact Superconducting Heterodyne Focal Plane Array Implemented With HPI (Hybrid Planar Integration) Scheme	11
A 3D-Printed Subterahertz Metallic Surface-Wave Luneburg Lens Multibeam Antenna	11
4GREAT—A Four-Color Receiver for High-Resolution Airborne Terahertz Spectroscopy	11
350-GHz Bandpass Filters Using Superconducting Coplanar Waveguide	11
692 GHz High-Efficiency Compact-Size InP-Based Fundamental RTD Oscillator	11
A Compact 281–319 GHz Low-Power Downconverter MMIC for Superheterodyne Communication Receivers	10
Study of Phase Error Reconstruction and Motion Compensation for Terahertz SAR With Sparsity-Promoting Parameter Estimation	10
Transmission, Reflection, and Scattering Characterization of Building Materials for Indoor THz Communications	10
The High-Order Coalesced TM₁₁-Like Mode Operation for 220 GHz Sheet Beam Traveling-Wave Tube	10
Silicon Dielectric Diplexer Module for 600-GHz-Band Frequency-Division Multiplexing Wireless Communication	10
Compact Triangular-Cavity Singlet-Based Filters in Stackable Multilayer Technologies	10
Sensitivity Analysis of a 280–312 GHz Superheterodyne Terahertz Link Targeting IEEE802.15.3d Applications	10
H-Band Quartz-Silicon Leaky-Wave Lens With Air-Bridge Interconnect to GaAs Front-End	9
Accurate S-Parameter Modeling and Material Characterization in Quasi-Optical Systems	9
A Passive, Fully Staring THz Video Camera Based on Kinetic Inductance Bolometer Arrays	9
Guided Reflectometry Imaging Unit Using Millimeter Wave FMCW Radars	9
Design and Microfabrication of an Interaction Circuit for a 0.3-THz Sheet Beam Extended Interaction Oscillator With Multiple-Mode Operation	9
Capacitively-Coupled Resonators for Terahertz Planar-Goubau-Line Filters	9
Submillimeter-Wave Permittivity Measurements of Bound Water in Collagen Hydrogels via Frequency Domain Spectroscopy	9
180-GHz Pulsed CMOS Transmitter for Molecular Sensing	9
In Situ Hilbert-Transform Spectral Analysis of Pulsed Terahertz Radiation of Quantum Cascade Lasers by High-T_c Josephson Junctions	8
Terahertz Channel Characterization Using a Broadband Frequency Comb Radiator in 130-Nm SiGe BiCMOS	8
Silicon Integrated Subharmonic Mixer on a Photonic-Crystal Platform	8
Compact 480-GHz Radiometer Calibration Unit With Specular Reflection Absorber for Atmospheric Remote Sensor On-Board Microsatellite	7
Collector Series-Resistor to Stabilize a Broadband 400 GHz Common-Base Amplifier	7
Broadband Lens-Integrated CMOS Camera-Type THz Compact Antenna Test Range	7
Coherent Power Combination in a Resonant-Tunneling-Diode Arrayed Oscillator With Simplified Structure	7

Sub-Millimeter-Wave Polarization-Independent Spatial Power Divider for a Two-Port Dual-Polarized Antenna	7
426-GHz Concurrent Transceiver Pixel in 65-nm CMOS for Active Imaging	7
A Novel 1/f Noise Mitigation Technique Applied to a 670 GHz Receiver	7
Low Frequency Terahertz Induced Thermoacoustic Signal Characteristics and Its Application in Solid-State Terahertz Transmitter Power Detection	7
The Coming Age of Pnictide and Chalcogenide Ternary Crystals in the Terahertz Frequency Regime	7
125 GHz Frequency Doubler Using a Waveguide Cavity Produced by Stereolithography	7
Low-Loss Single-Band, Dual-Band, and Broadband mm-Wave and (Sub-)THz Interconnects for THz SoP Heterogeneous System Integration	7
A 300 GHz Push-Push Coupling VCO Employing T-Embedded Network in CMOS Technology	7
Fundamental Performance Limits on Terahertz Wireless Links Imposed by Group Velocity Dispersion	7
Antenna-Coupled Graphene Field-Effect Transistors as a Terahertz Imaging Array	7
Adaptive Subaperture Integration for Wide-Angle Synthetic Aperture Radar	7
Limitations of Output Power and Efficiency of Simple Resonant-Tunneling-Diode Oscillators	7
Terahertz Slot Dielectric Waveguide Implemented on the Silicon-BCB-Quartz Platform	7
Sub-Terahertz 3-D Printed All-Dielectric Low-Cost Low-Profile Lens-Integrated Polarization Beam Splitter	7
Developing Industry-Level Terahertz Imaging Resolution Using Mathematical Model	7
Modelling Terahertz Spoof Surface Plasmon Polariton Waveguides Using a Circuit Model	7
Microresonator Frequency Reference for Terahertz Precision Sensing and Metrology	7
Broadband Super-Resolution Terahertz Time-Domain Spectroscopy Applied to Gas Analysis	6
Neural Network-Based Design of Two-Focal-Spot Terahertz Diffractive Optical Elements	6
In Situ Cell Detection Using Terahertz Near-Field Microscopy	6
Beam-Shape Effects and Noise Removal From THz Time-Domain Images in Reflection Geometry in the 0.25–6 THz Range	6
A 510-to-545 GHz Radiating Source With an SIW-Based Harmonic Power Extractor in 40-nm CMOS	6
Absorption-Mode Splitting of Terahertz Metamaterial Mediated by Coupling of Spoof Surface Plasmon Polariton	6
Broadband Terahertz Isolator	6
Wideband End-Wall Transition From Microstrip to Waveguide With via-Less Choke Structure for Terahertz Application	6
Nonlinear Optical Up-Conversion in Terahertz Parametric Process: Simulation and Experiment	6
Resolution Limits of Hyper-Hemispherical Silicon Lens-Integrated THz Cameras Employing Geometrical Multiframe Super-Resolution Imaging	6
Bias-Dependent Carrier Dynamics and Terahertz Performance of ErAs:In(Al)GaAs Photoconductors	6
Quantification Analysis of Progesterone Based on Terahertz Spectroscopy	6
Ultrafast Photoexcited-Carrier Behavior Induced by Hydrogen Ion Irradiation of a Cu(In,Ga)Se₂ Thin Film in the Terahertz Region	6
A Silicon Chip-Based Waveguide Directional Coupler for Terahertz Applications	6
Generation of THz Vortex Beams and Interferometric Determination of Their Topological Charge	5
Optical Spectrometer With a Pulse-to-Pulse Resolution for Terahertz and mm-Wave Signals	5
On-Chip Characterization of High-Loss Liquids Between 750 and 1100 GHz	5
Thermoemission-Based Model of THz Detection and Its Validation—JLFET Case Studies	5
Three-Dimensional Surface Reconstruction of Space Targets Using a Terahertz MIMO Linear Array Based on Multilayer Wideband Frequency Interferometry Techniques	5
Deep Learning at the Physical Layer for Adaptive Terahertz Communications	5
High-Resolution Terahertz Spectroscopy for Investigation of Energetic Materials During Their Thermal Decomposition	5
SiGe BiCMOS Heterodyne Receiver Frontend for Remote Sensing With Small Satellites	5
Terahertz Chiral Metasurface for Dual-Band Spin-Selective Absorption With Strong Circular Dichroism	5
Silicon Probe Measurement and Characterization in Sub-THz Range	5
A 250–310 GHz Piezo-Motor Actuated SPDT Waveguide Switch With High Isolation	5
Application of Terahertz Time-Domain Spectroscopy in Characterizing Thin Metal Film–Substrate Structures	5
Quantum Limited SIS Receiver Technology for the Detection of Water Isotopologue Emission From Comets	5
Large Array of Single-Photon Counting Quantum Capacitance Detectors	5
High Accuracy Pointing for Quasi-Optical THz Mixer Arrays	5
Waveguide-to-Substrate Transition Based on Unilateral Substrateless Finline Structure: Design, Fabrication, and Characterization	5
Compact 140–220 GHz E/H Waveguide Phase Shifter and Its Application to Terahertz Multiport Circuits	5
Effects of Diffuse and Specular Reflections on Detecting Embedded Defects of Foams With a Bifocal Active Imaging System at 0.22 THz	5
A 260-GHz Four-Way Phase Compensated CMOS Frequency Multiplier Chain	5
Hybrid Multiphase Fresnel Lenses on Silicon Wafers for Terahertz Frequencies	4
Phase Control of Terahertz Waves Using Injection-Locked Resonant Tunneling Diode Oscillator	4
Measurement of Time Dependent Reflection, Transmission, and Absorption in Laser Driven Silicon and GaAs Switches for 250 GHz Radiation	4
A Hollow-Waveguide-Fed Planar Wideband Patch Antenna Array for Terahertz Communications	4
670-GHz Cascode Circuits Based on InGaAs Metamorphic High-Electron-Mobility Transistors	4
Optimizing Terahertz Waveform Selection of a Pharmaceutical Film Coating Process Using Recurrent Network	4
Defect Detection in Bidirectional Glass Fabric Reinforced Thermoplastics Based on 3-D-THz Imaging	4
Single-Layer Dichroic Filters for Multifrequency Receivers at THz Frequencies	4
High-Birefringence Low-Loss Hollow-Core THz Waveguide Embedded Parallel Slab Cladding	4
Guided Lattice Modes in Terahertz Metasurface Deposited on Ultrathin Dielectric Substrate	4
Transmission and Confocal Imaging Characteristics of Bendable ABS/Ag-Coated Hollow Waveguide at Low THz Band	4
Dispersion From Diffuse Reflectors and Its Effect on Terahertz Wireless Communication Performance	4
Noncontact Characterization of Antenna Parameters in mmW and THz Bands	4
A 201- and 283-GHz Dual-Band Amplifier in 65-Nm CMOS Adopting Dual-Frequency $G_{\max }$-Core With Dual-Band Matching	4
Operational Bandwidth Extension in Continuous-Wave Terahertz Systems by Digital Postprocessing	4
A Mode-Suppressing Metasurface for Large-Width MMICs Suitable for Tightly Packaged Millimeter and Submillimeter Heterodyne Receivers	4
600-GHz High-Power Signal Sources Based on 250-nm InP HBT Technology	4
Optimization of a Quasi-Mesh Absorber for the Terahertz Intensity Mapper	4
Terahertz One-Port De-Embedding Method for Extracting Dielectric Constant of SiO₂ in Standard CMOS	4
Flow Cell to Study Crystallization Processes In Situ Using Terahertz Time-Domain Spectroscopy	4