Results 11 to 20 of about 1,859,983 (208)
Intense terahertz radiation: generation and application [PDF]
Frontiers of Optoelectronics, 2020 Strong terahertz (THz) radiation provides a powerful tool to manipulate and control complex condensed matter systems. This review provides an overview of progress in the generation, detection, and applications of intense THz radiation. The tabletop intense THz sources based on Ti:sapphire laser are reviewed, including photoconductive antennas (PCAs ...
Kaixuan Li, Huan Zhao, Yan Zhang
semanticscholar +5 more sources
Coherent terahertz radiation with 2.8-octave tunability through chip-scale photomixed microresonator optical parametric oscillation [PDF]
Nat Commun, 2022 High spectral purity frequency agile room temperature sources in the terahertz spectrum are foundational elements for imaging, sensing, metrology, and communications. Here we present a chip scale optical parametric oscillator based on an integrated nonlinear microresonator that provides broadly tunable single frequency and multi frequency oscillators ...
Wang W +9 more
arxiv +2 more sources
Prediction of leaf water potential and relative water content using terahertz radiation spectroscopy [PDF]
Plant Direct, 2020 Increases in the frequency and severity of droughts across many regions worldwide necessitate an improved capacity to determine the water status of plants at organ, whole plant, canopy, and regional scales.
Marvin Browne +4 more
semanticscholar +2 more sources
Detection and manipulation of methylation in blood cancer DNA using terahertz radiation [PDF]
Sci Rep, 2019 DNA methylation is a pivotal epigenetic modification of DNA that regulates gene expression. Abnormal regulation of gene expression is closely related to carcinogenesis, which is why the assessment of DNA methylation is a key factor in cancer research ...
H. Cheon +4 more
semanticscholar +2 more sources
Intense terahertz radiation and their applications [PDF]
Journal of Optics, 2016 In this paper, we will review both past and recent progresses in the generation, detection and application of intense terahertz (THz) radiation. We will restrict the review to laser based intense few-cycle THz sources, and thus will not include sources such as synchrotron-based or narrowband sources.
Denis Ferachou +7 more
openaire +2 more sources
Terahertz Radiation from Combined Metallic Slit Arrays [PDF]
Sci Rep, 2019 We report an approach to efficiently generate terahertz radiation from a combined periodic structure. The proposed configuration is composed of two metallic slit arrays deliberately designed with different periodic length, slit width and depth.
Dazhi Li +9 more
semanticscholar +2 more sources
Terahertz radiation driven nonlinear transport phenomena in two-dimensional tellurene [PDF]
arXivNonlinear electron transport induced by polarized terahertz radiation is studied in two-dimensional tellurene at room temperature. A direct current, quadratic in the radiation's electric field, is observed. Contributions sensitive to radiation helicity, polarization orientation as well as polarization independent current are found.
Mönch E +9 more
arxiv +2 more sources
Graphene for Emission of Terahertz Radiation [PDF]
arXiv, 2018 Graphene is a two-dimensional crystal consisting of a monatomic layer of carbon atoms. Electrons and holes in graphene behave as quasi-relativistic particles with zero effective mass and large (as compared to semiconductors) Fermi velocity. These unique physical properties can be used for designing detectors, emitters and modulators of terahertz ...
openaire +3 more sources
1.4‐mJ High Energy Terahertz Radiation from Lithium Niobates [PDF]
Laser & Photonics reviews, 2020 Free‐space super‐strong terahertz (THz) electromagnetic fields offer multifaceted capabilities for reaching extreme nonlinear THz optics. However, the lack of powerful solid‐state THz sources with single pulse energy >1 mJ is impeding the proliferation ...
Baolong Zhang +11 more
semanticscholar +1 more source
Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses [PDF]
Appl. Phys. Lett. 120, 180401 (2022), 2021 Spintronic terahertz emitters are novel, broadband and efficient sources of terahertz radiation, which emerged at the intersection of ultrafast spintronics and terahertz photonics. They are based on efficient spin-current generation, spin-to-charge-current and current-to-field conversion at terahertz rates.
arxiv +1 more source