Results 21 to 30 of about 3,205 (255)
Photonics, 2022 Terahertz wave generation through the optical rectification of 780 nm femtosecond laser pulses in ZnGeP2 crystals has been studied. All of the possible interactions of types I and II were analyzed by modeling and experimentally.
Vladimir Voevodin +4 more
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Hemispherical lens integrated room temperature ultra-broadband GaAs HEMT terahertz detector
Frontiers in Physics, 2023 Terahertz (THz) detection has been extensively studied in the application fields of wireless communication, non-destructive imaging and spectrum inspection, etc., in the decades.
Chenyu Yao +8 more
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Efficient photoconductive terahertz detection through photon trapping in plasmonic nanocavities
APL Photonics, 2021 We present a photoconductive terahertz detector that employs a plasmonic nanocavity to offer high-sensitivity and broadband operation when used in a terahertz time-domain spectroscopy system even at very low optical pump power levels.
N. T. Yardimci, D. Turan, M. Jarrahi
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New Antenna for Detecting Polarization States of Terahertz
Frontiers in Physics, 2022 The polarization measurement of terahertz (THz) waves is indispensable in THz time-domain spectroscopy (THz-TDS) applications to detect material properties.
Wei Shi +4 more
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Single Nanowire Photoconductive Terahertz Detectors [PDF]
Nano Letters, 2014 Spectroscopy and imaging in the terahertz (THz) region of the electromagnetic spectrum has proven to provide important insights in fields as diverse as chemical analysis, materials characterization, security screening, and nondestructive testing. However, compact optoelectronics suited to the most powerful terahertz technique, time-domain spectroscopy,
Peng, Kun +11 more
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Advances on terahertz single-pixel imaging
Frontiers in Physics, 2022 Single-pixel imaging is a novel imaging technique that can obtain image information through a single-pixel detector. It can effectively avoid the problem of lack of high-quality area array detectors in the terahertz band, and has attracted the attention ...
Qiao Hu +7 more
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Design of wideband terahertz pyroelectric detector based on metasurface [PDF]
Journal of Hebei University of Science and TechnologyIn order to solve the problems of low absorption efficiency and small frequency range of traditional terahertz (THz) detectors, a broadband terahertz metasurface pyroelectric detector was proposed by combining a dual metasurface absorption array ...
Ming ZHANG +6 more
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Real-time terahertz imaging with a single-pixel detector
Nature Communications, 2020 Terahertz imaging is promising in many applications, but still relies on complex equipment. Here, the authors develop a simplified solution that enables terahertz real-time imaging using a single-pixel detector and rapid reconstruction methods.
Rayko Ivanov Stantchev +3 more
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A Hard Example Mining Approach for Concealed Multi-Object Detection of Active Terahertz Image
Applied Sciences, 2021 Concealed objects detection in terahertz imaging is an urgent need for public security and counter-terrorism. So far, there is no public terahertz imaging dataset for the evaluation of objects detection algorithms.
Ling Li +3 more
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Resonant Polysilicon Antenna for Terahertz Detection
IEEE Photonics Journal, 2019 Resonant antennas have garnered considerable interest in terahertz and visible regimes owing to its extraordinary localized field concentration capability.
Ze Shen +5 more
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