Results 51 to 60 of about 56,977 (335)

Tamm Cavity in the Terahertz Spectral Range

open access: yesACS Photonics, 2020
Electromagnetic resonators, which are based on optical cavities or electronic circuits, are key elements to enhance and control light-matter interaction. In the THz range, current optical cavities exhibit very high-quality factors with $(λ/2)^3$ mode volumes limited by diffraction, whereas resonant electronic circuits show low quality factor but ...
Messelot, Simon   +7 more
openaire   +3 more sources

Measurement of electrodynamic characteristics of flat metal gratings in the teraherz range [PDF]

open access: yesРадиофизика и электроника, 2019
Subject and purpose. The terahertz frequency range now attracts much attention of researchers and consumers in connection with the wide possibilities of using it for solving a number of problems in science, technology and medicine.
M.I. Dzyubenko   +3 more
doaj   +1 more source

Monolithic superconducting emitter of tunable circularly polarized terahertz radiation [PDF]

open access: yes, 2017
We propose an approach to control the polarization of terahertz (THz) radiation from intrinsic Josephson-junction stacks in single crystalline high-temperature superconductor $Bi_2Sr_2CaCu_2O_{8+\delta}$. By monolithically controlling the surface current
Elarabi, A.   +3 more
core   +2 more sources

RESONATOR METHOD FOR DETERMINATION OF LOSSES IN ONE-DIMENSIONAL METAL GRATINGS IN TERAHERTZ RANGE [PDF]

open access: yesРадиофизика и электроника, 2018
Subject and purpose. The terahertz frequency range currently attracts much attention due to the wide possibilities of its application for solving a number of problems in science, technology, and medicine.
M. I. Dzyubenko   +3 more
doaj   +1 more source

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

open access: yesPhotonics, 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   +6 more
doaj   +1 more source

Detection of incoherent broadband terahertz light using antenna-coupled high-electron-mobility field-effect transistors

open access: yes, 2017
The sensitivity of direct terahertz detectors based on self-mixing of terahertz electromagnetic wave in field-effect transistors is being improved with noise-equivalent power close to that of Schottky-barrier-diode detectors.
Li, Xiang(李想)   +9 more
core   +1 more source

Polarization-maintaining reflection-mode THz time-domain spectroscopy of a polyimide based ultra-thin narrow-band metamaterial absorber [PDF]

open access: yes, 2018
This paper reports the design, the microfabrication and the experimental characterization of an ultra-thin narrow-band metamaterial absorber at terahertz frequencies.
Astorino, Maria Denise   +8 more
core   +2 more sources

Reconfigurable nonlinear photonic devices based on nanostructured graphene (review)

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
The relevance of the study is due to the need to mastering the terahertz (THz) range to increase the volume of transmitted information and is dictated by the needs of the developing technology of THz frequencies in the development of electronically ...
Galina S. Makeeva
doaj   +1 more source

TUNABLE AND BROADBAND DIFFERENTIAL PHASE SECTIONS IN TERAHERTZ FREQUENCY RANGE [PDF]

open access: yesRadio Physics and Radio Astronomy, 2016
Purpose: Studying the quasioptical tunable and broadband differential phase section (DPS) consisting of several birefringent elements (BE) on the basis of form birefringence effect. Design/methodology/approach: Using the polarization scattering matrix
O. S. Kosiak   +3 more
doaj   +1 more source

Wide frequency tuning of continuous terahertz wave generated by difference frequency mixing under exciton-excitation conditions in a GaAs/AlAs multiple quantum well [PDF]

open access: yes, 2018
Continuous terahertz wave sources with narrow bandwidth and wide frequency tunability enable high-resolution terahertz spectroscopy and high-speed information communication.
Clarke, Edmund   +7 more
core   +3 more sources

Home - About - Disclaimer - Privacy