Articles with "sub thz" as a keyword



Sub‐THz 3D printed lens based on diffractive neural network for low‐cost detection of orbital angular momentum states

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Published in 2023 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.33700

Abstract: Accurate detection of orbital angular momentum (OAM) is one of the critical techniques for OAM‐related communications. However, conventional OAM identification approaches are often complicated and costly. In this letter, a convenient method based on diffraction… read more here.

Keywords: neural network; orbital angular; detection orbital; angular momentum ... See more keywords

Frequency Tunable sub-THz Gyrotron for Direct Measurements of Positronium Hyperfine Structure

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Published in 2018 at "Journal of Infrared, Millimeter, and Terahertz Waves"

DOI: 10.1007/s10762-018-0522-2

Abstract: The feasibility of a high-power sub-THz gyrotron with smooth wideband frequency tuning suitable for direct measurement of the positronium hyperfine structure is demonstrated numerically using both averaged equations and PIC-code simulations. Analytical estimates show that… read more here.

Keywords: frequency; sub thz; thz; positronium hyperfine ... See more keywords

Sub-THz signals’ propagation model in hypersonic plasma sheath under different atmospheric conditions

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Published in 2017 at "Science China Information Sciences"

DOI: 10.1007/s11432-017-9232-8

Abstract: One of the aims for modern hypersonic cruise flight is hypersonic global reach. The length of route for such flights could be up to thousands of kilometers. The atmospheric conditions on the route are complicated.… read more here.

Keywords: propagation; different atmospheric; sub thz; hypersonic plasma ... See more keywords

Sub-THz High Spin Precession Frequency in van der Waals Ferromagnet Fe3GaTe2.

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Published in 2024 at "Nano letters"

DOI: 10.1021/acs.nanolett.4c03291

Abstract: The 2D magnet Fe3GaTe2 has received considerable attention for its high Curie temperature (TC), robust intrinsic ferromagnetism, and significant perpendicular magnetic anisotropy (PMA). In this study, the dynamic magnetic properties of Fe3GaTe2 are systematically investigated… read more here.

Keywords: spin precession; precession frequency; sub thz; fe3gate2 ... See more keywords
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A double layer FSS filter for sub-THz applications

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Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-99256-2

Abstract: This work presents the simulated and measured performance of single- and double-layer frequency selective surface filters for operation at sub-THz frequencies (250 GHz center frequency). They were composed of concentric square loops with a split… read more here.

Keywords: layer fss; layer; sub thz; double layer ... See more keywords

Emission from human skin in the sub THz frequency band

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Published in 2022 at "Scientific Reports"

DOI: 10.1038/s41598-022-08432-5

Abstract: Recently published Radiometric measurements of human subjects in the frequency range 480–700 GHz, demonstrate the emission of blackbody radiation from the body core, rather than the skin surface. We present a detailed electromagnetic simulation of… read more here.

Keywords: sub thz; human skin; skin sub; emission human ... See more keywords

A high-performance sub-THz planar antenna array for THz sensing and imaging applications

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-68010-9

Abstract: Terahertz (THz) spectral region from 0.1 to 3 THz is envisaged to hold immense potential in the next generation of wireless technologies. Recently, research has focused on this terahertz gap, because of its unprecedented channel… read more here.

Keywords: thz; antenna; performance; imaging applications ... See more keywords

Room-temperature ultrasensitive photon-level detection in the subterahertz frequency regime

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-21001-w

Abstract: In recent years, subterahertz (sub-THz) electromagnetic waves have been increasingly applied in next-generation wireless communications, imaging, spectroscopy, and nondestructive sensing. However, high-sensitivity detection of sub-THz waves is a difficult task for conventional electronic and photonic… read more here.

Keywords: detection; sub thz; room temperature; frequency ... See more keywords

Sub‐THz Generation Device Based on Optical Difference Frequency Generation Using MgO:LiTaO3${\rm LiTaO}_3$ Rectangular Waveguide

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Published in 2025 at "Electronics Letters"

DOI: 10.1049/ell2.70404

Abstract: We propose a sub‐THz signal generation device based on optical difference‐frequency generation (DFG) in a periodically poled MgO: rectangular waveguide. In the experimental demonstration, a sub‐THz signal was successfully generated at around the frequency of… read more here.

Keywords: device based; generation; generation device; sub thz ... See more keywords

Free-standing sub-THz metamaterial with the high Q-factor isolated electric dipole response

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Published in 2025 at "Applied Physics Letters"

DOI: 10.1063/5.0257871

Abstract: Achieving high-Q resonances in the terahertz frequency range is crucial for applications such as sensors, filters, and emitters. One effective strategy for achieving such resonances involves the use of metamaterials. However, the performance of terahertz… read more here.

Keywords: free standing; standing sub; factor; sub thz ... See more keywords

Feedforward Compensation of Laser Frequency and Phase Noise for Photonics-Based Sub-THz Generation

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Published in 2024 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2024.3379496

Abstract: Optical heterodyne detection, in which two laser beams are coupled and then detected by using a photo-detector, is an attractive photonic method for generating sub-THz signals. However, the signals generated by heterodyning two free-running lasers… read more here.

Keywords: laser; phase noise; sub thz; photonics ... See more keywords