Results 51 to 60 of about 1,859,983 (208)
Nature Communications, 2017 Controlling and modulating terahertz signals is of fundamental importance to allow systems level applications. We demonstrate an innovative approach for controlling the propagation properties of terahertz (THz) radiation, through use of both the ...
Ashish Chanana +5 more
semanticscholar +1 more source
Generation and manipulation of chiral terahertz waves emitted from the three-dimensional topological insulator Bi2Te3 [PDF]
arXiv, 2020 Arbitrary manipulation of broadband terahertz waves with flexible polarization shaping at the source has great potential in expanding real applications such as imaging, information encryption, and all-optically coherent control of terahertz nonlinear phenomena.
arxiv
Wide-band frequency modulation of a terahertz intrinsic Josephson junction emitter of a cuprate superconductor [PDF]
arXiv, 2023 Communication using terahertz (~10^12 Hz) electromagnetic waves is critical for developing 6th-generation wireless network infrastructures. Conflictions between stable radiation and the modulation frequency of terahertz sources impede the superposing of transmitting signals on carrier waves.
arxiv
Physics and Applications of Terahertz Radiation [PDF]
, 2014 THz Detectors 1 Quantum Well Photodetectors Fabrizio Castellano. 1.1 Fundamentals of photoconductors and photodiodes. 1.2 Semiconductor quantum wells. 1.3 Intersubband transitions. 1.4 Transport in multi-quantum-well systems. 1.5 Quantum well detectors. 1.6 Quantum dot detectors. 2 Bolometric Detectors Francois Simoens. 2.1 Bolometric detection.
Douglas J. Paul, Matteo Perenzoni
openaire +2 more sources
Physical Review Letters, 2016 We demonstrate effective control on the carrier-envelope phase and angular distribution as well as the peak intensity of a nearly single-cycle terahertz pulse emitted from a laser filament formed by two-color, the fundamental and the corresponding second
Zhelin Zhang +6 more
semanticscholar +1 more source
Terahertz brightness at the extreme: demonstration of 5 GV/m, 17 T low frequency λ3 terahertz bullet [PDF]
arXiv, 2014 The brightness of a light source defines its applicability to nonlinear phenomena in science. Bright low frequency terahertz (< 5THz) radiation confined to a diffraction-limited spot size is a present hurdle due to the broad bandwidth and long wavelengths associated with single-cycle terahertz pulses as well as due to the lack of terahertz wavefront ...
arxiv
, 2016 We report on the study of terahertz radiation-induced MIRO-like oscillations of magnetoresistivity in GaAs heterostructures. Our experiments provide an answer on two most intriguing questions—effect of radiation helicity and the role of the edges ...
T. Herrmann +14 more
semanticscholar +1 more source
Cascaded second-order processes for the efficient generation of narrowband terahertz radiation
, 2017 The generation of high-energy narrowband terahertz radiation has gained heightened importance in recent years due to its potentially transformative impact on spectroscopy, high-resolution radar and more recently electron acceleration.
G. Cirmi +10 more
semanticscholar +1 more source
Terahertz Diffractive Optics—Smart Control over Radiation
Journal of Infrared, Millimeter and Terahertz Waves, 2019 Over the last 20 years, thin and lightweight optical elements have become very desirable, especially for the terahertz (THz) range. Reduction of the volume of optical elements alongside an increase in their effective efficiency has begun a new direction ...
A. Siemion
semanticscholar +1 more source
Responsivity Calibration of Pyroelectric Terahertz Detectors [PDF]
arXiv, 2014 There has been a significant advancement in terahertz radiation sources in the past decade, making milliwatt terahertz power levels accessible in both continuous-wave and pulsed operation. Such high-power terahertz radiation sources circumvent the need for cryogenic-cooled terahertz detectors such as semiconductor bolometers and necessitate the need ...
arxiv