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
Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakefields [PDF]
, 2016 It is found that nonlinear interaction of plasma wakefields driven by counterpropagating laser or particle beams can efficiently generate high-power electromagnetic radiation at the second harmonic of the plasma frequency.
I. Timofeev, V. Annenkov, E. Volchok
semanticscholar +1 more source
Strong Anisotropy in Liquid Water upon Librational Excitation using Terahertz Laser Fields
, 2020 Tracking the excitation of water molecules in the homogeneous liquid is challenging due to the ultrafast dissipation of rotational excitation energy through the hydrogen-bonded network.
Adams, Ellen M. +12 more
core +1 more source
Photoconductive antennas for terahertz radiation.
, 2018 Photoconductive materials are currently used to design antennas that radiate in the terahertz band. In this master thesis is proposed to study the design of different types of antennas and feeding mechanisms to increase the radiation efficiency.
openaire +2 more sources
Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems
Advanced Optical Materials, EarlyView.This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge +2 more
wiley +1 more source
6.2-GHz modulated terahertz light detection using fast terahertz quantum well photodetectors
Scientific Reports, 2017 The fast detection of terahertz radiation is of great importance for various applications such as fast imaging, high speed communications, and spectroscopy.
Hua Li +9 more
doaj +1 more source
Terahertz Pulse Generation in Underdense Relativistic Plasmas: From Photoionization-Induced Radiation to Coherent Transition Radiation. [PDF]
Physical Review Letters, 2017 Terahertz to far-infrared emission by two-color, ultrashort optical pulses interacting with underdense helium gases at ultrahigh intensities (>10^{19} W/cm^{2}) is investigated by means of 3D particle-in-cell simulations. The terahertz field is shown to
J. Déchard +4 more
semanticscholar +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
Experimental Evidence of Free Carrier Generation in 2D Hybrid Organic–Inorganic Perovskites
Advanced Optical Materials, EarlyView.ABSTRACT Despite the significant potential of 2D hybrid organic–inorganic perovskites (2DHOIPs) for high‐efficiency optoelectronics application‐comparable to their 3D counterparts, the fundamental carrier photogeneration remains unclear. In contrast to conventional ultrafast optical property characterization, we use ultrafast photocurrent spectroscopy ...
Tuhin Ghosh +8 more
wiley +1 more source
Multifocal terahertz radiation by intense lasers in rippled plasma
, 2017 This paper presents a theoretical model for the generation of terahertz radiation by cosh-Gaussian laser beams of high intensity, which are capable of creating relativistic–ponderomotive nonlinearity. We find the components of the terahertz radiation for
Reenu Gill, Divya Singh, H. Malik
semanticscholar +1 more source