Results 41 to 50 of about 19,013 (311)
RESONATOR METHOD FOR DETERMINATION OF LOSSES IN ONE-DIMENSIONAL METAL GRATINGS IN TERAHERTZ RANGE [PDF]
Радиофизика 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
Employment of gradient metal-film output mirrors in terahertz discharge lasers [PDF]
Радиофизика и электроника, 2021 Subject and Purpose. The problem of output beam matching with the waveguide transmission line often arises when using terahertz lasers. The special quasi-optical devices that are used to combat the problem lead to radiation losses and additional material
M.I. Dzyubenko +7 more
doaj +1 more source
TUNABLE AND BROADBAND DIFFERENTIAL PHASE SECTIONS IN TERAHERTZ FREQUENCY RANGE [PDF]
Radio 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
Single-Mode Rib Waveguide for the Terahertz Range Using 3D Printed Alumina
, 2023 In recent years, all-dielectric waveguides have emerged as a promising candidate platform for future integrated terahertz technologies. Inspired by optical photonics, many of these technologies are limited to planar waveguides and are reliant upon ...
Lees, H. +5 more
core +1 more source
Novel antenna-coupled terahertz photodetector with graphene nanoelectrodes [PDF]
, 2023 Antenna-coupled photomixers, serving as emitters and receivers of terahertz (THz) radiation, are the central active components of coherent optoelectronic THz systems. Here, we focus on the continuous-wave modality, which finds ample use for spectroscopy,
Al-Daffaie, Shihab +5 more
core +1 more source
APL Materials, 2023 For nonlinear optical materials to be applicable as efficient broadband terahertz (THz) wave generators, low absorption with wide transparency in the THz frequency range is highly important. In this study, we report efficient organic THz wave generators,
Bong-Rim Shin +5 more
doaj +1 more source
Properties of InxGa1−xN films in terahertz range
Applied Physics Letters, 2012 In this letter, we report the characterization of the refractive indices and complex conductivities of a set of GaN films with different carrier concentrations, InN film, and InxGa1−xN films with indium content varying from x = 0.07 to x = 0.14 grown by metalorganic chemical vapor deposition for frequencies ranging from 0.3 to 3 THz using terahertz ...
Gauthier-Brun, A. +7 more
openaire +2 more sources
Dynamic modeling of Terahertz Quantum cascade lasers [PDF]
, 2011 In this paper, the influence of the simplifications made in the four-equation-based set of rate equations describing the dynamic behavior of a Quantum Cascade Laser (QCL) is studied.
Petitjean, Yoann +3 more
core +1 more source
Broadband and efficient terahertz beam scanning using a 3D-printed Risley prism
, 2022 We present a Risley prism beam-scanning system for terahertz waves. The scanning system consists of two 3Dprinted prisms made of cyclic olefin copolymer (COC), which is a low loss material at terahertz frequencies.
Lees, H. +3 more
core +1 more source
Dielectric behavior of CaCu_3Ti_4O_12 ceramics in the terahertz range
Optics Express, 2011 The dielectric properties of 1050 °C/12h sintered CaCu3Ti4O12 (CCTO) ceramics have been investigated by using terahertz time domain spectroscopy in the frequency range of 0.2-1.6 THz at room temperature. When applying an external optical field, an obvious variation of dielectric constant was observed and reached up to 7%.
Liang, Wu +5 more
openaire +2 more sources