OOIR: Observatory of International Research

Papers

(The median citation count of Journal of Infrared Millimeter and Terahertz Waves is 2. 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 2022-01-01 to 2026-01-01.)

Article	Citations
Circularly Polarized Antenna Array Using Metallic Slanted Cross Slot for 5G MMW Applications	85
Novel Method for Extracting Electromagnetic Parameters of Thin Films Based on Dual-Mode Terahertz Time-Domain Spectroscopy Measurements	71
High Radiation Efficiency Broken-Period Distributed Feedback Surface Emitting Terahertz Quantum Cascade Laser	42
CW Terahertz Spectroscopy of Heavy-Metal-Induced Alterations in Arabidopsis halleri	36
In Situ Thickness Measurements of a Silicon Wafer with a Deposited Thin Layer Using Multi-Reflected Terahertz Electromagnetic Waves Through Quartz Chamber Window	36
High-Performance, Efficient, Low-Fresnel Number Focusing Metamirror in the D-Band	36
High-Performance Four-Element Self-Decoupled MIMO Antenna System for N260 Band Applications	32
Terahertz Characterization Microcellular Polyethylene Terephthalate (MCPET) across Broad Temperature Range	32
Resonant Atmospheric Plasma-Sprayed Ceramic Layers Effectively absorb Microwaves at 170 GHz	31
Comprehensive Terahertz Studies on Semi-organic 2-Amino-5-Nitropyridinium Chloride Crystal: Terahertz Generation and Birefringence	30
Applicable Near-Field Millimeter Wave Imaging Technology for Human Body Security Based on Scanning 1D Non-uniform Sparse Arrays	26
High Azimuthal Mode Selectivity of a Cavity with Mode-Joining Corrugations for High-Harmonic Gyrotrons	23
Study and Experimental Validation of a 0.34 THz Double Corrugated Waveguide Interaction Structure for Backward Wave Oscillator with Sheet Electron Beam	21
Measuring Fast Mechanical Deformation with Micrometer Precision Based on Millimeter Wave Interferometry	20
90–96 GHz 67 W Radial Power Combining Amplifier Based on Vortex Mode	20
Prototype for Strong Interaction of Micron-Sized van der Waals Materials with Sub-Millimeter Waves Using a Single Metal Antenna	18
Accuracy Permittivity Measurement at W-Band Using a High Overmoded Factor Based on the Multi-channel Waveguide	18
Effect of Non-Ideal Electron Beam Characteristics on the Performance of a Megawatt-Power Gyrotron with an External Monochromatic Signal	17
Single-Mode Hollow-Core Anti-Resonant Waveguides for Low-Loss THz Wave Propagation	17
Design and Analysis of a Compact MIMO Antenna for 5G mmWave N257, N260, and N262 Band Applications	16
Qualitative and Quantitative Analysis of Multivariate Mixed Fluoroquinolone Antibiotics Based on Terahertz Spectroscopy	16
Amplitude and Phase Imaging of CW-THz Waves Using a Photomixing System with Coherent Detection	15
Qualitative Identification of Sialic Acid Content Based on Terahertz Time-Domain Spectroscopy	15
A High Gain Switched Beamforming Antenna Array with Hemispherical Lens for Ka-Band 5G Applications	15
Terahertz Radiation from Water Molecules Rotated by Femtosecond Laser Field	15

The dotTHz Project: A Standard Data Format for Terahertz Time-Domain Data	14
A CNC-Machined WR-2.2 Band Orthogonal Mode Transducer for a Radiometer	14
Publisher Correction to: Volume 40 - Issues 1, 2, 3, 4, 5, 6, 7, 8, 9, 11-12 ; Volume 41 - Issues 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ; Volume 42 – Issues 1, 2	14
Simulation of the Full Spatio-Temporal Evolution of Ultrafast Terahertz Harmonic Generation from Photoionized Holes in Silicon at Cryogenic Temperature	13
A High Isolation UWB MIMO Vivaldi Antenna Based on CSRR-NL for Contemporary 5G Millimeter-Wave Applications	12
Q-Band MIMO Antennas with Circular Polarization for Spatial and Polarization Diversity	10
Millimeter-Wave Dual-Band MIMO Antennas for 5G Wireless Applications	10
Determination of Porosity and Moisture Content of Granular Activated Carbon Using Sub-Thz Ellipsometry	10
Ultra-narrowband Coherent THz Source by Chirped-Pulse Difference Frequency Generation	10
Sub-THz Fully Inline Dual-band Filter Based on High-Order Mode Resonators	9
Terahertz Properties of Common Microwave Dielectric Materials	9
A 40-W Q/V-Band Gateway SSPA Based on Corporate Waveguide E-Plane Combining	9
Metamaterial Inspired Quad-Port Multi-Antenna System for Millimeter Wave 5G Applications	9
Coupled-Line Push-Push Colpitts Oscillator Operating at 0.45 THz with High-Efficiency DC-to-RF 1.01% Based on Transferred-Substrate InP-HBT MMIC Process	8
Investigation and Fabrication of a Low Loss and Wideband Single Crystal Diamond Vacuum Window for W-Band Traveling Wave Tube	8
Optimised Spintronic Emitters of Terahertz Radiation for Time-Domain Spectroscopy	8
Ultra-Wideband Flexible Metamaterial Absorber Based on Silver Nanoparticle Using Inkjet Printing	8
Terahertz Vibrational Modes of Sodium Magnesium Chlorophyllin and Chlorophyll in Plant Leaves	7
3D Printed Broadband Sub-terahertz Absorber for Absolute Power Sensors in Free Space	7
OCDMA: a MAC Protocol for Industrial Intra-machine TeraHertz Network	7
A Well-matched and Balanced Impedance Matching Method Utilizing a Full-Scalable Magnetic-Electric Coupled Transformer Model	7
Millimeter and Sub-millimeter Wave Transmission Through a Radome Covered by Water: The Impact of the Shape of Water	7
A 60 GHz CMOS Transmit/Receive Switch Using Leakage Cancellation and Body Bias Technique	7
Design of a 300 GHz Relativistic Gyrotron with an output Power of more Than 7 MW	7
Implementation Methods for Transmission Zeros in Groove Gap Waveguide Filters at W-Band	7
Photonic Crystal Resonator in the Millimeter/Terahertz Range as a Thin Film Sensor for Future Biosensor Applications	7
CMOS Power Dividers and Variable-Gain Amplifier for 60 GHz Mobile Devices and 5G-Compatible Internet of Things (IoT)-Served Sensors	6
Synchrotron-Based Temperature-Dependent Terahertz and Far-Infrared Spectroscopy of Aerographite and Single-Walled Carbon Nanotube Aerogel	6
The Progress in the Studies of Mode Interaction in Gyrotrons	6
A Tutorial on THz Pulse Analysis: Accurate Retrieval of Pulse Arrival Times, Spectral Energy Density and Absolute Spectral Phase	6
High-Speed 1 THz Photonic Continuous Wave Phase-Sensitive Radar with Micrometer Precision	6
Rapid Determination of Benzo(a)pyrene Concentration in Soybean Oil by Terahertz Transmission Spectroscopy with Chemometrics	6
Terahertz Beam Steering with Curved Metasurfaces	6
Standing Wave Pattern Suppression in the Terahertz Frequency Domain Spectroscopy by Means of Windowed Fourier Filtering	6
A Compressed Sensing-Based Algorithm and Simplified System to Improve the Efficiency of CW THz CT Imaging	6
Terahertz Detection of Acid Blue 113 Dye Using Hybrid Hydrogels	6
Conical Horn Antenna with High Gain and Circular Polarization for Sub-mm-Wave/Terahertz	5
Broadband Nonuniform Terahertz Multimode Conversion Series with Compactness and Pure Pattern	5
Electro-Optical Characterization of an Amorphous Germanium-Tin (Ge1-XSnx) Microbolometer	5
Compact Wideband 4-Port MIMO Antenna System Design with Improved Inter-Elements Isolation Characteristics	5
Investigation and Experiment of a Novel Chamfered V-Shaped Microstrip Slow-Wave Structure for W-Band Traveling-Wave Tube	5
Miniaturized Multi-band Millimeter-Wave Vivaldi Antenna with Performance Optimization at 28 GHz for 5G MIMO Applications	5
Ka-band Wide-Isolation-Bandwidth Waveguide Power Divider Using Microstrip-Probe Isolation Circuit	5
A Broadside Yagi-Uda Antenna with Enhanced Gain for mm-Wave Applications	5
Ultra-Wideband Monopole Antenna with Defected Ground for Millimeter-Wave Applications	5
Non-Contact Monitoring of Plant Leaf Water Status Using Terahertz Waves	5
New Radial Power Combining/Dividing Method Based on Circular Sectoral Waveguide TE01 Mode	5
Simulation of Operating Regimes of Two Gyrotrons with a Common Resonant Reflector	5
Terahertz Radiation from Two-Color Laser-Induced Gas Plasma Filament Under a Wide Range of Pressure	5
Minimally Coupled Two-Element MIMO Antenna with Dual Band (28/38 GHz) for 5G Wireless Communications	5

Terahertz Beam Steering: from Fundamentals to Applications	5
Design and Optimization of a Broadband Waveguide-to-50 $$\Omega$$-Microstrip Transition for Q-Band Applications with Low-Loss and Easy Scalability	5
Using Neural Networks to Design Leaky-Wave Antennas for Terahertz Wireless Links	4
Deep Learning Classification of Breast Cancer Tissue from Terahertz Imaging Through Wavelet Synchro-Squeezed Transformation and Transfer Learning	4
A Frequency Doubler Utilizing Functionally Integrated Technique Based on a Symbolically Defined Model of GaN Schottky Barrier Diode	4
Design of a 231-GHz Solid-State Receiver Front-End Based on Inverted-MS Structure Package and Schottky Diodes	4
E-Plane Riblet 3 dB Coupler Implemented Using Half-Mode Groove Gap Waveguide	4
Characterization of Ultrathin Conductive Films Using a Simplified Approach for Terahertz Time-Domain Spectroscopic Ellipsometry	4
Highly Efficient and Ultra-wideband Polarization Converter for Millimeter-Wave Applications	4
Design and Experimental Research of 45-GHz Quasi-optical Transmission Line for Melting Rock	4
Performance Degradation Caused by Ionization of the Released Gas Molecules in W-Band Gyrotron Traveling Wave Tube Based on a Simplified Ionization Model	4
A Novel Terahertz Frequency Measurement Method Based on the Fabry–Pérot Resonator	4
Adding a Tuneable Response to a Terahertz Metasurface Using a Graphene Thin Film	4
A Compact Four-Element MIMO Antenna for 5 G Millimeter-Wave (37–39 GHz) Applications	4
Potential for Acceleration of Simulation of Dynamic Processes in Oversized Gyrotrons by Means of Using 2.5D Particle-in-Cell Method	4
Four-Way Waveguide Power Divider/Combiner Based on Stepped T-junction for THz Antenna Array Application	4
Non-adiabatic Non-axisymmetric Electron-Optic Systems for Multi-mirror and Multi-barrel Gyrotrons	4
Full-Polarimetric Tx/Rx Duplexer Concept for Broadband High-Power Radar Applications	4
Algorithm for Determination of Cutoff Frequency of Noise Floor Level for Terahertz Time-Domain Signals	3
Ultra-Wideband PIN-PD THz Emitter with > 5.5 THz Bandwidth	3
Integrated Magnetic and Electric Dipoles Based Circularly Polarized Compact MIMO Antenna for Ka-band with Wide Impedance Bandwidth	3
A 77-GHz Down-Conversion Mixer with +18.4 dB High Gain, +12.2 dBm OIP3, and Low Noise in 90-nm CMOS Technology	3
Terahertz Electromodulation Spectroscopy for Characterizing Electronic Transport in Organic Semiconductor Thin Films	3
New Far-Infrared Laser Frequencies Generated by CH3CN, CD3CN, $^{13}\textit {CH}_{3}$I, CD3I, and $^{13}\textit {CD}_{3}$I	3
Modified Tinkham’s Equation for Exact Computation of a Thin Film Terahertz Complex Conductivity	3
PointNet + + Based Concealed Object Classification Utilizing an FMCW Millimeter-Wave Radar	3
VO2-Based Dynamic Coding Metamaterials for Terahertz Wavefront Engineering	3
ErAs:In(Al)GaAs Terahertz Transceivers for Compact Pulsed Free Space Photonic Vector Network Analyzer	3
Wired THz Communications	3
Terahertz Time-Domain Spectroscopy and Dispersive Fourier Transform Spectroscopy: Two Sides of the Same Coin	3
Terahertz-wave three-dimensional imaging using a resonant-tunneling-diode oscillator	3
Millimeter-Wave Spectrometer for High-Precision Studies of Jet-Cooled Molecules and Weakly Bound Molecular Complexes	3
Reconfigurable Far-Infrared FSS Filters on Polyimide Substrate	3
Compact Elliptical Slot Millimeter-Wave MIMO Antenna for 5G Applications	3
Measurement and Modeling on Terahertz Channels in Rain	3
Measurement of Broadband IF-over-Fiber Link for 60 GHz Wireless Applications	3
Cascaded Terahertz Parametric Generation Under Noncollinear Phase-Matching Condition	2
Excitation and Suppression of the Frequency Self-Modulation Instability in a W-band Gyro-TWT	2
Design and Characterization of Terahertz CORPS Beam Forming Networks	2
Internal Structure Observation of an Aged Violin by OCT and THz Imaging	2
A Novel Absorption Metasurface with Wide Angular Stability for Ultrawideband RCS Reduction	2
ANFIS-Based $$4\times 4$$ Dual Band Circular MIMO Antenna Design with Pretty-Small Size and Large Bandwidth for 5 G Millimeter-Wave Applications at 28/38 GHz	2
Frequency Reconfıgurable Lıbra Shape Antenna for mmW 5 g Communıcatıons	2
W-band Dual-band Filter and Diplexer Based on Mixed TE301- and TE102-Mode Cavities	2
Progress in performance development of room temperature direct terahertz detectors	2
Enhanced THz Emission in a Few-Element 1D Photoconductive Antenna Array	2
Continuously Tunable Ultra-Broadband Low-Phase Noise Photonic Terahertz Oscillator	2
Terahertz Transmission Characteristics for UAV Swarm on Atmosphere-Limited Line-of-sight Links Under Complex Meteorological Conditions	2
Morphological Changes of Melanoma Cells Induced by Pulsed Terahertz Radiation	2
Dyakonov-Shur Instability in Diamond Terahertz Field-Effect Transistors	2
Millimeter Wave/5G Multiband SIW Antenna with Metasurface Loading for Circular Polarization and Bandwidth Enhancement	2
A Compact 26/39 GHz Millimeter wave MIMO Antenna Design for 5G IoT Applications	2
Sub-terahertz High-Absorptance Thin Films with Robust Optical Properties Against Film Thickness Variations	2
Terahertz Characterization of Glass-Based Materials and Stackups for 6 G Microelectronics Packaging	2
Full Waveguide Matching Design for 220 GHz Frequency Doubler	2
Windowing in Terahertz Time-Domain Spectroscopy: Resolving Resonances in Thin-Film Samples	2
Design and Experimental of a Terahertz Multi-Gap Extended Interaction Oscillator Operating in High-Order Mode	2
Close-Range 3-D Millimeter Wave Imaging with Full Path Loss Based on Range Stacking Algorithm	2
Generation Mechanism for the Far-Infrared Emission Between Rydberg States of NO	2
Terahertz Properties of Polymers for 2D Nonlinear Grating Formation	2
Performance Evaluation and Experimental Study of a 0.34-THz Folded Waveguide Sheet Beam BWO	2
Observation of Selective Excitation of Raman Inactive Phonon Mode of Strontium Titanate Through Anti-Stokes Hyper-Raman Scattering Process	2
A Compact MIMO Array Antenna with Wideband Circular Polarization Using Magneto-Electric Dipole Elements for Millimeter-Wave Applications	2
A Low-Profile Sixteen Elements Four Port MIMO Antenna Array for Multiband Millimeter Wave and Conformal Electronics	2
Experimental Delay Tests in Causal THz Channel Model	2
Design and Analysis of a 0.65-THz Sheet Beam TWT with a Low-Loss Window Based on Heterogeneous Material Combination Strategy	2
3D Printed Fabry–Pérot Filters for Terahertz Spectral Range	2
Resonant Ring with a Gain of 36 for Use with a 1 MW 110 GHz Gyrotron	2