Results 71 to 80 of about 19,013 (311)
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 +4 more
wiley +1 more source
Design and implementation of terahertz reflectarray
, 2012 Extent: 2p.In this work, a reflectarray operating at 1 THz is designed and implemented using metal-dielectric resonant patch elements. The dimensions of the single elements are optimized through simulation to achieve a wide range of the reflection phase ...
Tiaoming Niu +13 more
core +1 more source
Advanced Functional Materials, EarlyView.Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani +9 more
wiley +1 more source
Generation of spatiotemporally tailored terahertz wavepackets by nonlinear metasurfaces
Nature Communications, 2019 While the terahertz range has become increasingly important for a wide range of applications, efficient sources with bespoke output characteristics are still lacking. Here, Keren-Zur et al.
Shay Keren-Zur +4 more
doaj +1 more source
High-temperature terahertz quantum-cascade lasers: design optimization and experimental results
Российский технологический журнал, 2022 Objectives. Terahertz quantum-cascade lasers (THz QCLs) are compact solid-state lasers pumped by electrical injection to generate radiation in the range from 1.2 to 5.4 THz.
D. V. Ushakov +3 more
doaj +1 more source
, 2022 S.202-203Terahertz time-domain spectroscopy (TDS) is a very attractive technique in the field of nondestructive layer-thickness determination. The characteristics of the generated terahertz pulses - bandwidth and dynamic range - have direct influence on ...
Pfeiffer, T. +6 more
core +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Sum-Frequency Signals in 2D-Terahertz-Terahertz-Raman Spectroscopy
, 2020 We demonstrate that halogenated methane 2D-Terahertz Terahertz Raman (2D-TTR) spectra are determined by the complicated structure of the instrument response function (IRF) along $f_1$ and by the molecular coherences along $f_2$. Experimental improvements
Griffin Mead (1760926) +4 more
core +1 more source
Advanced Materials, EarlyView.Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley +1 more source
Integrated Luneburg and Maxwell Fisheye Lenses for the Terahertz Range
, 2019 Micro-scale silicon photonic crystal waveguides show promise to realize efficient terahertz photonic circuits. Monolithically-integrated gradient-index optics expand the functionality of terahertz photonic crystal waveguide-based systems.
Fujita, M. +7 more
core +1 more source