Results 41 to 50 of about 65,222 (316)
Coherent two-dimensional terahertz-terahertz-Raman spectroscopy [PDF]
Proceedings of the National Academy of Sciences, 2016 Significance The thermally populated motions of liquids, including hydrogen bonds, low-energy bending vibrations, conformational torsions, and hindered rotations, are resonant in the terahertz region of the spectrum. These motions regulate solvation, macromolecular structure, and vibrational energy flow in liquid-phase chemistry.
Finneran, Ian A. +4 more
openaire +3 more sources
Effect of Ultraviolet Irradiation on 4H-SiC PiN Diodes Characteristics
Nanoscale Research Letters, 2021 In this paper, the effect of ultraviolet (UV) irradiation on the static characteristics of high voltage 4H-SiC PiN is investigated. No significant change is observed in the forward on state characteristic of 4H-SiC PiN diodes before and after ultraviolet
Xingliang Xu +6 more
doaj +1 more source
A True Optoelectronic Spectrum Analyzer for Millimeter Waves With Hz Resolution
IEEE Access, 2021 We present an architecture for millimeter-wave spectrum analyzers with Hz resolution and precision based on heterodyne down-conversion using ErAs:InGaAs photoconductive mixers driven by a tunable ultra-narrow linewidth continuous-wave (CW) photonic local
Anuar De Jesus Fernandez Olvera +2 more
doaj +1 more source
Probing Live PN Junctions with Terahertz Waves
, 2023 It is known that the reflectivity of semiconductor materials at terahertz frequencies is sensitive to changes in free carriers. This phenomenon has been rigorously studied with semiconductor wafers and offline semiconductor devices.
Lees, H. +3 more
core +1 more source
Carrier lifetime modulation on current capability of SiC PiN diodes in a pulsed system
Discover Nano, 2023 Silicon carbide (SiC) PiN diode has shown substantial promise as the freewheel diode for switch protection in a pulsed system. In this paper, we investigate the carrier lifetime (Ï„) modulation on pulsed current capability of SiC PiN diodes.
Xingliang Xu +6 more
doaj +1 more source
Progresses towards the application of terahertz technologies
Dianzi Jishu Yingyong, 2019 Science and technologies based on terahertz radiation have developed rapidly over the recent decades, which inspires the application attempts and research of terahertz technologies in several fields.
Wu Shuai, Qu Hao, Tu Hao, Feng Hui
doaj +1 more source
Sensors, 2021 Terahertz (THz) imaging techniques are attractive for a wide range of applications, such as non-destructive testing, biological sensing, and security imaging.
Da-Hye Choi +3 more
doaj +1 more source
Compact Design for Bi-Polarization Quantum Routers on SOI Platform
Photonics, 2023 An ultra-compact optical quantum router (QR) consisting of a Mach–Zehnder interferometer (MZI) and waveguide tapers is proposed and numerically simulated, using silicon-on-insulator (SOI).
Zijie Dai +5 more
doaj +1 more source
Carrierless I-Q Mixing for Terahertz Communications
, 2022 We experimentally demonstrate the transmission of a carrierless quadrature amplitude-modulated signals at a data rate up to 64 Gbit/s using a 253 GHz photonics-based terahertz communications system with optical intensity modulation, 10-km single mode ...
Shehata, M. +2 more
core +1 more source
Advanced Photonics 2013, 2013 We present an easily fabricated waveguide prism for the terahertz (THz) frequency range. The prism is made of polypropylene and uses waveguide dispersion to spatially separate frequencies over the range of 0.1 to 0.7 THz. The diffraction properties of the prism were determined using electromagnetic field simulations and the waveguide parameters were ...
Claudia, Goy +4 more
openaire +2 more sources