Results 51 to 60 of about 11,957 (302)

Optimum excitation wavelength and photon energy threshold for spintronic terahertz emission from Fe/Pt bilayer

iScience, 2022
Summary: Terahertz emission from ferromagnetic/non-magnetic spintronic heterostructures had been demonstrated as pump wavelength-independent. We report, however, the pump wavelength dependence of terahertz emission from an optimized Fe/Pt spintronic ...
Valynn Katrine Mag-usara, Mary Clare Escaño, Christopher E. Petoukhoff, Garik Torosyan, Laura Scheuer, Julien Madéo, Jessica Afalla, Miezel L. Talara, Joselito E. Muldera, Hideaki Kitahara, David R. Bacon, Makoto Nakajima, Keshav Dani, Evangelos Th. Papaioannou, René Beigang, Masahiko Tani   +15 more
doaj   +1 more source

Dipole‐Engineered Conductive Additives for Ultrastable Interphase Evolution in High‐Areal‐Capacity Silicon Anodes

Advanced Functional Materials, EarlyView.
In the work reported herein, dipole‐engineered sulfonated carbon nanofibers enable conductive additives to actively regulate interphase formation in silicon anodes. Polar sulfonyl groups guide electrolyte decomposition to form a compact LiF‐rich interphase while promoting robust integration with silicon.
Song Kyu Kang, Hyeonju Kim, Jeongbin Cho, Minseon Park, Taehun Kim, Seonghun Sin, Won Bae Kim   +6 more
wiley   +1 more source

Strong polarization-controlled terahertz generation by bi-elliptical polarized laser fields

Frontiers in Physics, 2023
Terahertz generation from atoms driven by two color linearly polarized (LP) and circularly polarized (CP) laser fields have been well investigated. In this work, based on the photocurrent model, we investigate theoretically the intensity and polarization
Yan-Mei Liu, Ya-Ning Li, Lei Zhang, Zhi-Hong Jiao, Song-Feng Zhao, Guo-Li Wang   +5 more
doaj   +1 more source

Intense terahertz radiation: generation and application

Frontiers of Optoelectronics, 2020
Strong terahertz (THz) radiation provides a powerful tool to manipulate and control complex condensed matter systems. This review provides an overview of progress in the generation, detection, and applications of intense THz radiation. The tabletop intense THz sources based on Ti:sapphire laser are reviewed, including photoconductive antennas (PCAs ...
Yan, Zhang, Kaixuan, Li, Huan, Zhao
openaire   +2 more sources

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

Plasmonic Field-Effect Transistors (TeraFETs) for 6G Communications

Sensors, 2021
Ever increasing demands of data traffic makes the transition to 6G communications in the 300 GHz band inevitable. Short-channel field-effect transistors (FETs) have demonstrated excellent potential for detection and generation of terahertz (THz) and sub ...
Michael Shur, Gregory Aizin, Taiichi Otsuji, Victor Ryzhii   +3 more
doaj   +1 more source

Short Terahertz Pulse Generation from a Dispersion Compensated Modelocked Semiconductor Laser [PDF]

, 2017
Dispersion compensation is vital for the generation of ultrashort and single cycle pulses from modelocked lasers across the electromagnetic spectrum. It is typically based on addition of an extra dispersive element to the laser cavity that introduces a ...
Hanond Nong, Linfield, E, Tignon, Jérôme, Sukhdeep Dhillon, Dhillon, Sukhdeep, Juliette Mangeney, Giles Davies, Jérôme Tignon, Jukam, N, Valentino Pistore, Pistore, V, Feihu Wang, Colombelli, R, Tignon, J, Amanti, M, Houver, S, Linfield, Edmund, Davies, AG, Jukam, Nathan, Maria Amanti, Sirtori, C, Edmund Linfield, Li, L, Wang, Feihu, Fobbe, Tobias, Carlo Sirtori, Souad Moumdji, Wang, F, Sirtori, Carlo, Houver, Sarah, Lianhe Li, Moumdji, Souad, Colombelli, Raffaele, Tobias Fobbe, Nong, Hanond, Dhillon, S, Pistore, Valentino, Sarah Houver, Amanti, Maria, Nathan Jukam, Mangeney, J, Li, Lianhe, Moumdji, S, Sergej Markmann, Mangeney, Juliette, Markmann, Sergej, Fobbe, T, Davies, Giles, Raffaele Colombelli, Nong, H, Markmann, S   +50 more
core   +1 more source

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

Advanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du, Shilei Ding, Min‐Gu Kang, Marco Hoffmann, Pietro Gambardella   +4 more
wiley   +1 more source

Passively mode-locked semiconductor lasers and their applications [PDF]

, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Frederic Surre, Surre, Frederic, Latkowski, Sylwester, Sylwester Latkowski, Pascal Landais, Landais, Pascal   +5 more
core   +1 more source

Pump beam diameter dependent terahertz generation from surface emitters - experiment and simulation

, 2022
S.443-444We report on tershertz wave generation using transient photoconductivity induced by femtosecond laser pulses in semiconductor surfaces. In particular the dependence of terahertz emission characteristics on pump pulse parameters like diameter and
Torosyan, G., Beigang, R., Zengerle, R., Theuer, M., Imhof, C., Ellrich, F.   +5 more
core   +1 more source