Results 91 to 100 of about 54,131 (291)

Influence Of Terahertz Range Electromagnetic Radiation At Molecular Spectrum Frequency Of 150+0,75 Ghz Nitric Oxide On Microcirculation Morphofunctional Disturbances In White Rats In Condition Of Acute And Prolonged Stress [PDF]

open access: yesСаратовский научно-медицинский журнал, 2009
The effect of electromagnetic radiation of terahertz range at frequency of emission and absorption molecular spectrum of 150+0,75GHz nitric oxide on morphofunctional changes of microcirculation and tissue structure in animals in condition of acute and ...
M.O. Kurtukova   +3 more
doaj  

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

Radio telecommunication systems of the terahertz range

open access: yesElectronics and Communications, 2011
В статье рассматриваются состояние и преимущества использования радиотелекоммуникационных систем терагерцового диапазона (от 100 ГГц до 3000 ГГц), сферы использования таких технологий, проблемы и возможные методы их решения. Частотный ресурс используемого в настоящее время радиодиапазона физически не способен передавать сверх- и высокоскоростные потоки
M.YE. Ilʹchenko   +3 more
openaire   +3 more sources

Fermi volume evolution and crystal field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy

open access: yes, 2019
We measure the quasiparticle weight in the heavy-fermion compound CeCu$_{6-x}$Au$_{x}$ ($x=0,\ 0.1$) by time-resolved THz spectroscopy for temperatures from 2 up to 300\,K.
Fiebig, Manfred   +6 more
core   +1 more source

Photo‐Reconfigurable Supercoupling Induced Transparency in On‐Chip Topological Edge State Cavities

open access: yesAdvanced Materials, EarlyView.
A novel supercoupling induced transparency (SIT) is demonstrated in a valley‐Hall photonic crystal. The valley vortices enable the supercoupling between a leaky and a guided topological edge state cavity even across a distance of 4.3 wavelengths, inducing a transparency window with negligible reflection.
Wenhao Wang, Ranjan Singh
wiley   +1 more source

Direct frequency-comb-driven Raman transitions in the terahertz range

open access: yes, 2018
We demonstrate the use of a femtosecond frequency comb to coherently drive stimulated Raman transitions between terahertz-spaced atomic energy levels. More specifically, we address the $3d~^2D_{3/2}$ and $3d~^2D_{5/2}$ fine structure levels of a single ...
DePalatis, Michael V.   +4 more
core   +1 more source

Superionic Amorphous Li2ZrCl6 and Li2HfCl6

open access: yesAdvanced Materials, EarlyView.
Amorphous Li2HfCl6 and L2ZrCl6 are shown to be promising solid‐state electrolytes with predicted ionic conductivities >20 mS·cm−1. Molecular dynamics simulations with machine‐learning force fields reveal that anion vibrations and flexible MCl6 octahedra soften the Li coordination cage and enhance mobility. Correlation between Li‐ion diffusivity and the
Shukai Yao, De‐en Jiang
wiley   +1 more source

Nonlinear terahertz devices utilizing semiconducting plasmonic metamaterials

open access: yes, 2015
The development of responsive metamaterials has enabled the realization of compact tunable photonic devices capable of manipulating the amplitude, polarization, wave vector, and frequency of light. Integration of semiconductors into the active regions of
Averitt, Richard D.   +8 more
core   +1 more source

Spoof Zenneck waves in terahertz spectral range

open access: yes, 2020
We theoretically predict existence of Spoof Zenneck waves in the terahertz spectral range that are supported by corrugated surfaces with subwavelength patterning made of materials with high positive dielectric permittivities.
Skorobogatiy, Maksim, Poulin, Mathieu
openaire   +3 more sources

Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet

open access: yesAdvanced Materials, EarlyView.
Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou   +24 more
wiley   +1 more source

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