Results 141 to 150 of about 56,977 (335)

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

Research on Direct Detection Method and Performance of Single-photon Counting Terahertz Radar

Leida xuebao
The conventional terahertz radar suffers from limited operation range for long-distance, noncooperative target detection due to the low transmitter power and atmospheric attenuation effect, both of which pose a hindrance in meeting the requirements of ...
Kang LIU, Hongxuan WU, Jun YI, Hongqiang WANG, Chenggao LUO   +4 more
doaj   +1 more source

Finding the accurate permittivity model for liquid water and heavy water at different temperatures in the Terahertz range [PDF]

, 2021
Mélanie Lavancier, Jean‐François Lampin, Romain Peretti   +2 more
openalex   +1 more source

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

Design and verify a dual modulated metasurface in terahertz range. [PDF]

Sci Rep, 2020
Zhong M.
europepmc   +1 more source

Graphene-enabled electrically tunability of metalens in the terahertz range

, 2020
ZhaoKun Zhang, XiangQian Qi, Jianfa Zhang, Chucai Guo, Zhihong Zhu   +4 more
openalex   +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

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

Characterizing hydrogen bonds in crystalline form of guanidinium salicylate in the terahertz range. [PDF]

RSC Adv, 2020
Song M, Yang F, Su C, Deng B.
europepmc   +1 more source

First Terahertz-range Experiments on Pump – Probe Setup at Novosibirsk free Electron Laser

, 2016
Yulia Yu. Choporova, V. V. Gerasimov, B. A. Knyazev, Sergey Mikhailovich Sergeev, О. А. Шевченко, R. Kh. Zhukavin, N. V. Abrosimov, K. A. Kovalevsky, V. K. Ovchar, Heinz‐Wilhelm Hübers, Г.Н. Кулипанов, Valery N. Shastin, H. Schneider, Н.А. Винокуров   +13 more
openalex   +1 more source