Results 41 to 50 of about 1,986,833 (274)
Terahertz Switch Utilizing Inorganic Perovskite-Embedded Metasurface
Frontiers in Physics, 2020 Various applications of terahertz technology require a large number of various terahertz wave control devices. Yet, high efficient and rapid-response terahertz switch is still a great challenge.
Ri-Hui Xiong +2 more
doaj +1 more source
Terahertz wave amplification by a laser-modulated relativistic electron beam
Physical Review Accelerators and Beams, 2021 Generation of tunable terahertz radiation based on the interaction of a frequency-chirped low power terahertz wave with a relativistic electron beam is proposed.
Hossein Saberi +2 more
doaj +1 more source
Optical characteristics of the undamaged and laser damaged K9 glass in terahertz band
Materials Research Express, 2020 K9 glass is an important optical element of the high energy laser system. In an attempt to investigate the variation of optical properties of K9 glass before and after laser induced damage, based on the transmission terahertz time-domain spectral system,
Xiaoyan Shang +4 more
doaj +1 more source
Broadband Terahertz Detection by Laser Plasma with Balanced Optical Bias
Sensors, 2022 Using a controlled optical bias and balanced geometry, we propose a new scheme for broadband terahertz detection by laser-gas interaction without high-voltage manipulation. Compared to the conventional optical bias scheme, the common noise is reduced and
Xu Sun +8 more
doaj +1 more source
Vertical Cavity Surface Emitting Terahertz Laser [PDF]
Physical Review Letters, 2012 Vertical cavity surface emitting terahertz lasers can be realized in conventional semiconductor microcavities with embedded quantum wells in the strong coupling regime. The cavity is to be pumped optically at half the frequency of the 2p exciton state.
Kavokin, A.V. +3 more
openaire +5 more sources
Powerful terahertz waves from long-wavelength infrared laser filaments
Light: Science & Applications, 2020 Strong terahertz (THz) electric and magnetic transients open up new horizons in science and applications. We review the most promising way of achieving sub-cycle THz pulses with extreme field strengths.
V. Fedorov, S. Tzortzakis
semanticscholar +1 more source
IEEE Photonics Journal, 2018 Terahertz high-data communication creates numerous demands for terahertz wave amplitude modulation. Here, we experimentally demonstrate a high-speed terahertz wave modulator based on 4-N,N-dimethylamino-4'-N'-methyl-stilbazolium tosylate (DAST)/Si
Li Jiu-sheng, Li Shao-he, Zhang Le
doaj +1 more source
Ultrafast Manipulation of Broadband Terahertz Waves by a Double-Pulse Laser Field
PhotonicsWe present a method to control broadband terahertz generation rapidly during the interaction of a strong laser field with a gas. To achieve it, we utilize a few-cycle double-pulse, which is a combination of two identically colored femtosecond fields with
Li-Ping Li +5 more
doaj +1 more source
Field-resolved high-order sub-cycle nonlinearities in a terahertz semiconductor laser
Light: Science & Applications, 2021 Two-dimensional terahertz strong-field spectroscopy reveals wave-mixing processes up to eighth order in a free-running quantum cascade laser, unraveling its sub-cycle gain dynamics and nonlinearities in a regime of negative absorption.
J. Riepl +13 more
doaj +1 more source
PROSPECTS OF THE USE OF GRADIENT GRATES IN THE LASERS OF TERAHERTZ RANGE [PDF]
Radio Physics and Radio Astronomy, 2018 Purpose: The improvement and development of terahertz radiation sources is required for the further development of the terahertz frequency range. Submillimeter lasers are one of the few sources of terahertz radiation.
M. I. Dzyubenko +3 more
doaj +1 more source