Sub‐THz 3D printed lens based on diffractive neural network for low‐cost detection of orbital angular momentum states
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
A double layer FSS filter for sub-THz applications
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Low-Loss, Thermally Insulating, and Flexible Rectangular Dielectric Waveguide for Sub-THz—Signal Coupling in Superconducting Receivers
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Terahertz Science and Technology"
DOI: 10.1109/tthz.2019.2963688
Abstract: Dielectric waveguides have potential as transmission lines in subterahertz (sub-THz) applications due to their low-loss. A new application of a rectangular dielectric waveguide (RDW) for a THz superconducting receiver system for radio astronomy is investigated… read more here.
Keywords: dielectric waveguide; rectangular dielectric; low loss; sub thz ... See more keywords
Anomalous and near-zero group-velocity dispersion in the sub-THz and mm-band atmospheric windows.
Sign Up to like & getrecommendations! Published in 2019 at "Optics letters"
DOI: 10.1364/ol.44.003170
Abstract: Analysis of the complex refractive index of atmospheric air reveals remarkably broad and continuous regions of anomalous and near-zero group-velocity dispersion in the subterahertz (sub-THz) and millimeter-band atmospheric windows. One such broadband dispersion anomaly is… read more here.
Keywords: dispersion; anomalous near; sub thz; group velocity ... See more keywords
Estimation of dark and active dielectric constants in the sub-THz frequency domain of an optically tunable organic semiconductor blend of poly(3-hexylthiophene) and phenyl-C61-butyric acid methyl ester
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Express"
DOI: 10.7567/apex.11.061601
Abstract: The dielectric properties of a 95% poly(3-hexylthiophene):5% phenyl-C61-butyric acid methyl ester blend are measured in the dark and under white light illumination by quasi-optical transmissometry and terahertz time-domain spectroscopy. The real part of the dielectric… read more here.
Keywords: poly hexylthiophene; sub thz; phenyl c61; hexylthiophene phenyl ... See more keywords