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Efficient on-chip terahertz generation and detection with GaN photoconductive emitters [PDF]

open access: yesLight: Science & Applications
Photoconductive emitters for terahertz generation hold promise for highly efficient down-conversion of optical photons because it is not constrained by the Manley-Rowe relation.
Can B. Uzundal   +9 more
doaj   +2 more sources

Dephasingless two-color terahertz generation [PDF]

open access: yesScientific Reports
A laser pulse composed of a fundamental and an appropriately phased second harmonic can drive a time-dependent current of photoionized electrons that generates broadband THz radiation.
Tanner T. Simpson   +5 more
doaj   +2 more sources

Highly efficient broadband terahertz generation from ultrashort laser filamentation in liquids [PDF]

open access: yesNature Communications, 2017
Developing simple and efficient table-top sources of intense terahertz radiation is an ongoing pursuit. Here, Dey et al. demonstrate broadband terahertz generation from laser filamentation in liquids with an order of magnitude higher energy than from ...
Indranuj Dey   +10 more
doaj   +2 more sources

Terahertz Generation by Optical Rectification of 780 nm Laser Pulses in Pure and Sc-Doped ZnGeP2 Crystals

open access: yesPhotonics, 2022
Terahertz wave generation through the optical rectification of 780 nm femtosecond laser pulses in ZnGeP2 crystals has been studied. All of the possible interactions of types I and II were analyzed by modeling and experimentally.
Vladimir Voevodin   +4 more
doaj   +1 more source

Ultrafast carrier generation in Bi1-xSbx thin films induced by intense monocycle terahertz pulses [PDF]

open access: yesEPJ Web of Conferences, 2019
Using terahertz-pump and terahertz-probe spectroscopy, we investigated terahertz-induced carrier generation processes in Bi1-xSbx thin films. The field dependence of the terahertz-induced transmittance change indicates distinct nonlinearity related to ...
Katayama Ikufumi   +9 more
doaj   +1 more source

Varying pre-plasma properties to boost terahertz wave generation in liquids

open access: yesCommunications Physics, 2021
Terahertz frequency radiation provides a powerful tool for the investigation of matter from the life science to the solid state and plasmas. The authors experimentally and numerically present enhanced terahertz wave generation by single-color double ...
Evgenia A. Ponomareva   +5 more
doaj   +1 more source

Study of Optical Rectification in Polycrystalline Materials Based on Random Quasi-Phase Matching

open access: yesCrystals, 2022
Random quasi-phase matching (RQPM) in polycrystalline materials has been considered as an important technique for nonlinear optical frequency conversion, especially in wideband laser generation involving femtosecond lasers.
Sijia Wang   +6 more
doaj   +1 more source

Phase-matching in terahertz quantum cascade laser sources based on Cherenkov difference-frequency mixing

open access: yesAPL Photonics, 2023
Terahertz quantum cascade laser sources based on intra-cavity Cherenkov difference-frequency generation in dual-wavelength mid-infrared quantum cascade lasers are currently the only monolithic semiconductor laser technology that can deliver continuous ...
Wolfhard Oberhausen   +7 more
doaj   +1 more source

Development and Potential of Terahertz Technology in Military Applications [PDF]

open access: yesHangkong bingqi, 2022
Terahertz technology, as an advanced frontier technology, is both an opportunity and a challenge for military development. This paper discusses the terahertz technology, the generation and detection of terahertz and the physical properties of terahertz ...
Zhang Bohuai, Guo Kai
doaj   +1 more source

Highly efficient generation of GV/m-level terahertz pulses from intense femtosecond laser-foil interactions

open access: yesiScience, 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

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