Results 1 to 10 of about 219,971 (340)

Real-space nanoimaging of THz polaritons in the topological insulator Bi2Se3 [PDF]

open access: yesNature Communications, 2021
Plasmon polaritons in topological insulators attract attention from a fundamental perspective and for potential THz photonic applications. Although polaritons have been observed by THz far-field spectroscopy on topological insulator microstructures, real-
Shu Chen   +8 more
semanticscholar   +1 more source

Terahertz and Raman Spectroscopic Investigation of Monohydrate Cocrystal of Antitubercular Isoniazid with Protocatechuic Acid

open access: yesPharmaceutics, 2021
Pharmaceutical cocrystal provides an alternative modification strategy for the formulation development of drugs owning to their potential ability to improve the physicochemical properties of active pharmaceutical ingredients (APIs) efficiently by ...
Yanhua Bo   +6 more
doaj   +1 more source

Performance and Optimization of Reconfigurable Intelligent Surface Aided THz Communications [PDF]

open access: yesIEEE Transactions on Communications, 2020
TeraHertz (THz) communications can satisfy the high data rate demand with massive bandwidth. However, severe path attenuation and hardware imperfection greatly alleviate its performance.
Hongyang Du   +6 more
semanticscholar   +1 more source

2D-Raman-THz spectroscopy with single-shot THz detection [PDF]

open access: yesThe Journal of Chemical Physics, 2021
We present a 2D-Raman-terahertz (THz) setup with multichannel (single-shot) THz detection, utilizing two crossed echelons, in order to reduce the acquisition time of typical 2D-Raman-THz experiments from days to a few hours. This speed-up is obtained in combination with a high repetition rate (100 kHz) Yb-based femtosecond laser system and a ...
Duchi, Marta   +3 more
openaire   +3 more sources

THz Emission Spectroscopy for THz Spintronics [PDF]

open access: yesJournal of the Physical Society of Japan, 2017
Spintronics is used as the standard for the readout of magnetically stored data and also has commercial applications for writing data. The generation, control and detection of spin-polarized currents, spin-dependent electric transport, and pure spin currents on the subpicosecond (10−12 s) timescale are the next challenges in spintronics. Terahertz (THz,
Thomas Jarik Huisman, Theo Rasing
openaire   +3 more sources

Sub-THz Waveguide Spectroscopy of Coating Materials for Particle Accelerators

open access: yesCondensed Matter, 2020
The electromagnetic characterisation of different materials for the inner wall coating of beam pipes is a long-standing problem in accelerator physics, regardless the purpose they are used for, since their presence may affect in an unpredictable way the ...
Andrea Passarelli   +5 more
doaj   +1 more source

Leakages suppression by isolating the desired quantum levels for high-temperature terahertz quantum cascade lasers

open access: yesScientific Reports, 2021
The key challenge for terahertz quantum cascade lasers (THz-QCLs) is to make it operating at room-temperature. The suppression of thermally activated leakages via high lying quantum levels is emphasized recently.
Li Wang   +4 more
doaj   +1 more source

Nonrelevant quantum levels effecting on the current in 2-well terahertz quantum cascade lasers

open access: yesScientific Reports, 2022
Recent renewed operating temperatures in terahertz quantum cascade lasers emphasize on narrowing the periodic length in a 2-well resonant-phonon design for a clean quantum level structure, in which the depopulation energy is significantly higher than one
Li Wang   +3 more
doaj   +1 more source

Strong-field terahertz-optical mixing in excitons [PDF]

open access: yes, 2002
Driving a double-quantum-well excitonic intersubband resonance with a terahertz (THz) electric field of frequency \omega_{THz} generated terahertz optical sidebands \omega=\omega_{THz}+\omega_{NIR} on a weak NIR probe.
A. Huntington   +22 more
core   +2 more sources

Analogue of Electromagnetically Induced Transparency in an S-Shaped All-Dielectric Metasurface

open access: yesIEEE Photonics Journal, 2019
We proposed and numerically investigated an analogue of electromagnetically induced transparency (EIT) all-dielectric metasurface that features one asymmetric S-shaped silicon resonator in the unit cell and generates high transparency, high Q-factor ...
Jinyan Diao   +5 more
doaj   +1 more source

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