Results 81 to 90 of about 42,760 (220)

Efficient metallic spintronic emitters of ultrabroadband terahertz radiation

, 2016
Terahertz electromagnetic radiation is extremely useful for numerous applications such as imaging and spectroscopy. Therefore, it is highly desirable to have an efficient table-top emitter covering the 1-to-30-THz window whilst being driven by a low-cost,
Beaurepaire, E., Braun, L., Freimuth, F., Hannegan, J., Hayden, L. M., Henrizi, J., Jaiswal, S., Jakob, G., Jourdan, M., Kampfrath, T., Kläui, M., Kronenberg, A., Maldonado, P., Martens, U., Mokrousov, Y., Münzenberg, M., Oppeneer, P. M., Radu, I., Seifert, T., Turchinovich, D., Wolf, M.   +20 more
core   +1 more source

Enhanced terahertz radiation generated by intense laser interaction with a two-layer thin solid target

Physical Review Accelerators and Beams
A terahertz radiation enhancing scheme, in which a linearly polarized weakly relativistic laser pulse irradiates a target consisting of two parallel thin-solid layers with a certain gap, is proposed and studied by using two-dimensional particle-in-cell ...
J. Y. Hua, X. B. Zhang, M. Chen, S. M. Weng, Y. P. Chen, Z. M. Sheng   +5 more
doaj   +1 more source

Broadband terahertz-power extracting by using electron cyclotron maser

Scientific Reports, 2017
Terahertz applications urgently require high performance and room temperature terahertz sources. The gyrotron based on the principle of electron cyclotron maser is able to generate watt-to-megawatt level terahertz radiation, and becomes an exceptional ...
Shi Pan, Chao-Hai Du, Xiang-Bo Qi, Pu-Kun Liu   +3 more
doaj   +1 more source

Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies

, 2017
Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D., Duan, Guangwu, Schalch, Jacob, Seren, Huseyin R., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +6 more
core   +1 more source

TERAHERTZ RADIATION IN COMPLEX PLEOPTO-ORTHOPTIC TREATMENT OF AMBLYOPIA AND ELIMINATION OF FUNCTIONAL SCOTOMA

Офтальмохирургия, 2017
Purpose. To estimate the efficiency of the terahertz radiation in the frequency of the molecular spectrum of radiation and absorption of atmospheric oxygen of 129.0GHz in a complex pleoto-orthoptic treatment of amblyopia and elimination of functional ...
K. U. Eremenko, N. N. Aleksandrova, V. F. Kirichuk   +2 more
doaj   +1 more source

Pulsed THz radiation due to phonon-polariton effect in [110] ZnTe crystal

, 2012
Pulsed terahertz (THz) radiation, generated through optical rectification (OR) by exciting [110] ZnTe crystal with ultrafast optical pulses, typically consists of only a few cycles of electromagnetic field oscillations with a duration about a couple of ...
C. C. Chi, C. M. Tu, C. W. Luo, J. C. Chen, Lee Y.-S., S. A. Ku, Shen Y. R., W. C. Chu   +7 more
core   +1 more source

Terahertz generation by beamlet superposition

, 2019
We analytically show how a superposition of beamlets produces terahertz radiation with greater spatial homogeneity and efficiency compared to tilted-pulse-fronts generated by diffraction gratings.
Kärtner, Franz X., Nelson, Keith A., Ofori-Okai, Benjamin, Ravi, Koustuban   +3 more
core   +1 more source

InP double heterojunction bipolar transistors for terahertz computed tomography

AIP Advances, 2018
We present experimental studies of terahertz radiation detection by InP double heterojunction based transistors. We analyze the relation between their static characteristics and the experimentally determined voltage and current responsivities, showing ...
Dominique Coquillat, Alexandre Duhant, Meriam Triki, Virginie Nodjiadjim, Agnieszka Konczykowska, Muriel Riet, Nina Dyakonova, Olivier Strauss, Wojciech Knap   +8 more
doaj   +1 more source

Interaction of terahertz electromagnetic field with metallic grating: Near-field zone

, 2012
We have developed theory for the interaction of THz radiation with a sub-wavelength metallic grating. The structure of electric fields of the electromagnetic wave under the metallic grating has been studied in the near-field zone.
Korotyeyev, V. V., Lyaschuk, Yu. M.
core   +1 more source

Generation of terahertz radiation in the plasma of optical gas breakdown [PDF]

, 2023
A. А. Ushakov, P. A. Chizhov, V. V. Bukin, S. V. Garnov   +3 more
openalex   +1 more source