Results 61 to 70 of about 42,760 (220)
The Conjugate Gradient Least Square Algorithm in Terahertz Tomography
IEEE Access, 2021 Terahertz tomography allows for non-contact tomographic inspection of dielectric materials without the need for radiation protection measures. Terahertz tomography offers the opportunity to inspect such objects from multiple angles not only by measuring ...
Karl H. May +3 more
doaj +1 more source
Analysis of terahertz generation using tilted-pulse-fronts
, 2018 A 2-D spatio-temporal analysis of terahertz generation by optical rectification of tilted-pulse-fronts is presented. Closed form expressions of terahertz transients and spectra in two spatial dimensions are furnished in the undepleted limit. Importantly,
Kärtner, Franz X., Ravi, Koustuban
core +2 more sources
Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm
IEEE Access, 2022 With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged.
Xuan Liu +10 more
doaj +1 more source
Fluence and polarisation dependence of GaAs based Lateral Photo-Dember terahertz emitters
, 2014 We characterise THz output of lateral photo-Dember (LPD) emitters based on semi-insulating (SI), unannealed and annealed low temperature grown (LTG) GaAs.
Apostolopoulos, V. +6 more
core +1 more source
Scientific Reports, 2017 The scope and potential uses of time-domain terahertz imaging and spectroscopy are mainly limited by the low optical-to-terahertz conversion efficiency of photoconductive terahertz sources.
Nezih Tolga Yardimci +3 more
doaj +1 more source
Generation of powerful terahertz emission in a beam-driven strong plasma turbulence
, 2012 Generation of terahertz electromagnetic radiation due to coalescence of upper-hybrid waves in the long-wavelength region of strong plasma turbulence driven by a high-current relativistic electron beam in a magnetized plasma is investigated.
A V Arzhannikov +5 more
core +1 more source
CMOS Terahertz Metamaterial Based 64 × 64 Bolometric Detector Arrays [PDF]
, 2017 We present two terahertz detectors composed of microbolometer sensors (vanadium oxide and silicon pn diode) and metamaterial absorbers monolithically integrated into a complementary metal oxide semiconductor (CMOS) process.
Cumming, David R.S. +3 more
core +1 more source
Coherent synchrotron radiation for broadband terahertz spectroscopy
Review of Scientific Instruments, 2013 We present the first high resolution (10−3 cm−1) interferometric measurements in the 200–750 GHz range using coherent synchrotron radiation, achieved with a low momentum compaction factor. The effect of microbunching on spectra is shown, depending on the bunch current.
Barros, J. +11 more
openaire +3 more sources
Generation of Strong Terahertz Pulse with Topologically Tunable Polarization Features
Ultrafast SciencePoincaré terahertz beams, which combine orbital and spin angular momentum, hold substantial promise for a wide range of applications. However, despite recent advancements, generating strong-field vector terahertz radiation remains a challenge.
Jie Cai +7 more
doaj +1 more source
iScience, 2022 Summary: The terahertz radiation from ultraintense laser-produced plasmas has aroused increasing attention recently as a promising approach toward strong terahertz sources.
Hong-Yi Lei +8 more
doaj +1 more source