Results 121 to 130 of about 12,412 (307)

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

Measurement, simulation, and characterization of train-To-infrastructure inside-station channel at the terahertz band

, 2019
\ua9 2011-2012 IEEE. In this paper, we measure, simulate, and characterize the train-To-infrastructure (T2I) inside-station channel at the terahertz (THz) band for the first time.
Rey, Sebastian, Eckhardt, Johannes M., He, Danping,, Kurner, Thomas, Rey, Sebastian,, Peng, Bile, Ai, Bo, Guan, Ke,, Zhong, Zhangdui, Eckhardt, Johannes M.,, He, Danping, Peng, Bile,, Guan, Ke, Zhong, Zhangdui,, Kurner, Thomas,, Ai, Bo,   +15 more
core   +1 more source

UAV Trajectory Design and Power Optimization for Terahertz Band-Integrated Sensing and Communications. [PDF]

Sensors (Basel), 2023
Gao Y, Xue H, Zhang L, Sun E.
europepmc   +1 more source

On the Use of Low Terahertz Band for Wireless Communications

, 2018
214
openaire   +2 more sources

Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures

Advanced Science, EarlyView.
Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu, Liya Zheng, Ruopeng Liu, Chunlin Ji, Bin Li   +4 more
wiley   +1 more source

Double-mode and double-beam staggered double-vane traveling-wave tube with high-power and broadband at terahertz band. [PDF]

Sci Rep, 2022
Wang W, Zhang Z, Wang P, Zhao Y, Zhang F, Ruan C.   +5 more
europepmc   +1 more source

Concurrent Terahertz Spin Excitations and Phase Shift Control in Fe4Nb2O9: A Material for Synergizing Computation and Communication Technologies

Advanced Science, EarlyView.
A multifunctional terahertz (THz) platform is demonstrated, in a model material Fe4Nb2O9, exhibiting a large intrinsic THz phase shift alongside distinct THz magnon excitations in its antiferromagnetic phase. This coexistence of phase modulation and spin dynamics offers a promising pathway toward integrated THz communication and magnonic computation ...
Brijesh Singh Mehra, Karan Datt Sharma, Sanjeev Kumar, Gaurav Dubey, Mitanshi Gupta, Ravi Shankar Singh, Dibakar Roy Chowdhury, Christine Martin, Antoine Maignan, Kiran Singh, Dhanvir Singh Rana   +10 more
wiley   +1 more source

Numerical modelling of photonic crystal based switching devices

, 2012
In the last few years research has identified Photonic Crystals (PhCs) as promising material that exhibits strong capability of controlling light propagation in a manner not previously possible with conventional optical devices.
Selim, Ramsey
core   +1 more source

Dielectric property measurements of corneal tissues for computational dosimetry of the eye in terahertz band in vivo and in vitro. [PDF]

Biomed Opt Express, 2021
Mizuno M, Kitahara H, Sasaki K, Tani M, Kojima M, Suzuki Y, Tasaki T, Tatematsu Y, Fukunari M, Wake K.   +9 more
europepmc   +1 more source

Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters

Advanced Science, EarlyView.
This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang, Zuanming Jin, Miao Cai, Zhiqiang Lan, Zhenjie Ge, Zheng Feng, Wei Tan, Alexei V. Balakin, Alexander P. Shkurinov, Yan Peng, Yiming Zhu   +10 more
wiley   +1 more source