Results 51 to 60 of about 19,013 (311)

MATCHING STRUCTURES WITH FORM BIREFRINGENCE WITH FREE SPACE IN THZ RANGE [PDF]

Радиофизика и электроника, 2015
When constructing polarization radio measuring paths operating in the THz frequency range (0.1…10 THz) the differential phase sections (DPS) are widely used. The use of terahertz waves (THz) allows research in radio astronomy, radio spectroscopy, biology,
V. I. Bezborodov, O. S. Kosiak, Ye. M. Kuleshov, V. V. Yachin   +3 more
doaj   +1 more source

Stimulated terahertz emission due to electronic Raman scattering in silicon

, 2009
Silicon-based semiconductors are intensively investigated over the past years as promising candidates for optoelectronic devices at terahertz (THz) frequencies [1]. Optically pumped intracenter silicon lasers, realized in the past decade in the THz range,
Pavlov, S.G., Hubers, H. W., Riemann, H., Hübers, H.-W., van der Meer, A.F.G., H. Riemann, R. Kh. Zhukavin, Redlich, B., Pavlov, S.G. (author), Böttger, U. (author), Abrosimov, N.V. (author), J. N. Hovenier, Abrosimov, N.V., Hübers, H.W. (author), Hübers, H.W., V. N. Shastin, Pavlov, S. G., Hovenier, J.N. (author), Böttger, U., Abrosimov, N. V., Shastin, V. N., Shastin, V.N., U. Böttger, N. V. Abrosimov, S. G. Pavlov, Zhukavin, R. K., Redlich, B. (author), Zhukavin, R.K., Hovenier, J. N., B. Redlich, Hovenier, J.N., Zhukavin, R.K. (author), A. F. G. van der Meer, Zhukavin, R.Kh., Van der Meer, A.F.G. (author), H.-W. Hübers, Shastin, V.N. (author), van der Meer, A. F. G., Riemann, H. (author)   +38 more
core   +1 more source

Tunable photonic crystal filter for terahertz frequency applications [PDF]

, 2003
In this Paper we investigate a tunable metallic photonic crystal filter with a novel mechanical tuning method, suitable for use in terahertz frequency applications.
Blaikie, R.J., Drysdale, T.D., Tim D. Drysdale, Richard J. Blaikie, Cumming, D.R.S., David R. S. Cumming   +5 more
core   +1 more source

PROSPECTS OF THE USE OF GRADIENT GRATES IN THE LASERS OF TERAHERTZ RANGE [PDF]

Radio Physics and Radio Astronomy, 2018
Purpose: The improvement and development of terahertz radiation sources is required for the further development of the terahertz frequency range. Submillimeter lasers are one of the few sources of terahertz radiation.
M. I. Dzyubenko, V. A. Maslov, E. N. Odarenko, V. P. Radionov   +3 more
doaj   +1 more source

Investigation of Water-free Biotissue-mimicking Phantoms in Terahertz Frequency Range [PDF]

, 2018
PVC-based water-free phantoms with silicon and zinc oxide nanoparticles were fabricated for mimicking biotissues in the terahertz frequency range.
Popov, Alexey P.; id_orcid, Bykov, A. (Alexander), Bykov, Alexander, Demchenko, Petr S., Meglinski, Igor V., Alexander V. Bykov, Meglinski, I. (Igor), Tianmiao Zhang, Zhang, Tianmiao, Meglinski, Igor, Khodzitsky, Mikhail K., Bykov, Alexander V., Popov, Alexey, Khodzitsky, M. (Mikhail), Petr S. Demchenko, Alexey P. Popov, Khodzitsky, Mikhail, Zhang, T. (Tianmiao), Igor V. Meglinski, Popov, A. (Alexey), Mikhail K. Khodzitsky, Demchenko, Petr, Demchenko, P. (Petr)   +22 more
core   +1 more source

Liquid Crystal-Tuned Planar Optics in Terahertz Range

Applied Sciences, 2023
Recently, terahertz waves of higher frequencies compared to microwave and radio frequency have shown great potential in radar detection and high-speed wireless communication. To spatially control the wavefront of terahertz beams, various novel components,
Hongguan Yu, Huacai Wang, Qiguang Wang, Shijun Ge, Wei Hu   +4 more
doaj   +1 more source

Measurement of Rain Attenuation in Terahertz Wave Range

Wireless Engineering and Technology, 2011
Rain attenuation at 355.2 GHz in the terahertz wave range was measured with our new 355.2 GHz measuring system under rainfall intensities up to 25 mm/hr. Rain attenuation coefficients were also calculated using four raindrop-size distributions, e Marshall-Palmer (M-P), Best, Polyakova-Shifrin (P-S) and Weibull distributions, and using a specific rain ...
Seishiro Ishii, Syuji Sayama, Toshihisa Kamei   +2 more
openaire   +2 more sources

Optical bistability of graphene in the terahertz range [PDF]

Physical Review B, 2014
We use an exact solution of the relaxation-time Boltzmann equation in a uniform AC electric field to describe the nonlinear optical response of graphene in the terahertz (THz). The cases of monolayer, bilayer and ABA-stacked trilayer graphene are considered, and the monolayer species is shown to be the most appropriate one to exploit the nonlinear free
Peres, N. M. R., Bludov, Yuliy V., Santos, Jaime E., Jauho, Antti-Pekka, Vasilevskiy, Mikhail   +4 more
openaire   +4 more sources

A time-domain terahertz spectrometer with 90 dB dynamic range

, 2022
S.777-778We present a time-domain terahertz spectrometer based on 1550 nm fiber laser technology and InGaAs photoconductive switches. The system features a voice-coil delay stage, which offers a high scanning speed of up to 60 traces per second. Owing to
Deninger, A., Roehle, H., Rettich, F., Göbel, T., Vieweg, N., Dietz, R.   +5 more
core   +1 more source

Directivity Control of Terahertz Radiation from Single-Color Filament Plasma with Polypropylene Pipe

Photonics, 2023
Two-dimensional angular distribution of terahertz emission from single-color filamentation of laser pulses is experimentally studied. The use of a polypropylene pipe makes it possible to transform the angular pattern of terahertz radiation from the ...
Daria Mokrousova, Leonid Seleznev, Dmitrii Pushkarev, Georgy Rizaev, Maximilian Levus, Andrey Koribut, Yakov Grudtsyn   +6 more
doaj   +1 more source