Results 21 to 30 of about 1,859,983 (208)

Flat liquid jet as a highly efficient source of terahertz radiation. [PDF]

open access: yesOptics Express, 2019
Polar liquids are strong absorbers of electromagnetic waves in the terahertz range, therefore, historically such liquids have not been considered as good candidates for terahertz sources.
A. Tcypkin   +8 more
semanticscholar   +1 more source

Enhanced Terahertz Radiation by Efficient Spin-to-Charge Conversion in Rashba-Mediated Dirac Surface States.

open access: yesNano letters (Print), 2020
The enhancement of terahertz (THz) radiation is of extreme significance for the realization of the THz probe and imaging. However, present THz technologies are far from being enough to realize high-performance and room-temperature THz sources ...
Mingyu Tong   +6 more
semanticscholar   +1 more source

Strong Terahertz Radiation from a Liquid-Water Line [PDF]

open access: yesPhysical Review Applied, 2018
Terahertz radiation generation from liquid water has long been considered impossible due to strong absorption. A few very recent works reported terahertz generation from water, but the mechanism is not clear and the efficiency demands to be enhanced.
Liming Zhang   +11 more
semanticscholar   +1 more source

Potential clinical applications of terahertz radiation

open access: yesJournal of Applied Physics, 2019
Terahertz radiation has significant potential in medical diagnosis and treatment because its frequency range corresponds to the characteristic energy of biomolecular motion.
J. Son, Seung Jae Oh, H. Cheon
semanticscholar   +1 more source

Terahertz radiation in ophthalmology (review)

open access: yesActa Biomedica Scientifica, 2021
Terahertz (THz) radiation is one of the new, intensively studied interdisciplinary fi elds of scientifi c knowledge, including medicine, in the fi rst decades of the 21st century. At the beginning of this article (review), in a brief form, the basic statements on THz radiation, the main parameters and properties are presented; the modern THz ...
A. G. Zabolotniy   +2 more
openaire   +3 more sources

Generation of 0.7 mJ multicycle 15 THz radiation by phase-matched optical rectification in lithium niobate [PDF]

open access: yes, 2020
We demonstrate efficient multicycle terahertz pulse generation at 14.6 THz from large-area lithium niobate crystals by using high-energy (up to 2 J) femtosecond Ti:sapphire laser pulses. Such terahertz radiation is produced by phase-matched optical rectification in lithium niobate.
arxiv   +1 more source

Strong terahertz radiation via rapid polarization reduction in photoinduced ionic-to-neutral transition of tetrathiafulvalene-p-chloranil [PDF]

open access: yesPhys. Rev. Lett. 124, 057402 (2020), 2018
Terahertz lights are usually generated through the optical rectification process within a femtosecond laser pulse in non-centrosymmetric materials. Here, we report a new generation mechanism of terahertz lights based upon a photoinduced phase transition (PIPT), in which an electronic structure is rapidly changed by a photoirradiation.
arxiv   +1 more source

Terahertz Science and Technology of Carbon Nanomaterials [PDF]

open access: yesNanotechnology 25, 322001 (2014), 2013
The diverse applications of terahertz radiation and its importance to fundamental science makes finding ways to generate, manipulate, and detect terahertz radiation one of the key areas of modern applied physics. One approach is to utilize carbon nanomaterials, in particular, single-wall carbon nanotubes and graphene. Their novel optical and electronic
arxiv   +1 more source

Terahertz radiation by optical rectification in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenylmalondialdehyde [PDF]

open access: yesJpn. J. Appl. Phys. 53, 09PD07 (2014); Special issue on "Ferroelectric Materials and Their Applications", 2014
Terahertz radiation by optical rectification has been observed at room temperature in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenyl malondialdehyde (PhMDA). The radiated electromagnetic wave consisted of a single-cycle terahertz pulse with a temporal width of $\sim$ 0.5 ps.
arxiv   +1 more source

Cascaded interactions mediated by terahertz radiation

open access: yesOptics Express, 2018
Optics express 26(10), 12536 - 12546 (2018).
Hemmer, Michael   +11 more
openaire   +4 more sources

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