Results 41 to 50 of about 12,412 (307)

Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy

, 2012
Dichroic polarizers and waveplates exploiting anisotropic materials have vast applications in displays and numerous optical components, such as filters, beamsplitters and isolators. Artificial anisotropic media were recently suggested for the realization
Zhu, W.M., Zhang, X.H., Bourouina, T., Kwong, D.L., Tsai, D.P., Liu, A.Q., Lo, G.Q., Zheludev, N.I., Teng, J.H.   +8 more
core   +1 more source

Plasmonic Terahertz Amplification in Graphene-Based Asymmetric Hyperbolic Metamaterial

Photonics, 2015
We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials (AHMM), strongly coupled to terahertz radiation.
Igor Nefedov, Leonid Melnikov
doaj   +1 more source

Identification of Terahertz Link Modulation in Atmospheric Weather Conditions

Applied Sciences, 2023
With the rapid increase of wireless connectivity, current spectrum resources are not enough for significant requirements for large data capacity. Research interests are moving towards the high-frequency band in the terahertz range for wider bandwidth ...
Zhendong Wu, Yige Qiao, Jianjun Ma, Yuping Zhang, Dehua Li, Huiyun Zhang   +5 more
doaj   +1 more source

Compressed Detection for Pulse‐Based Communications in the Terahertz Band [PDF]

Wireless Communications and Mobile Computing, 2018
Terahertz (THz) band (0.1‐10 THz)‐based electromagnetic communications are envisioned as a key technology to enable future high‐data‐rate short‐range ultrabroadband communications. However, one of the fundamental bottlenecks is the efficiency of the analog‐to‐digital converters (ADCs) considering the formidable challenge of sampling the signal at the ...
Pankaj Singh, Byung Wook Kim, Sung-Yoon Jung   +2 more
openaire   +1 more source

Terahertz pump-probe experiment at the synchrotron light source MLS

, 2013
We have developed a pump-probe experiment utilizing broad-band coherent terahertz synchrotron radiation provided by the Metrology Light Source (MLS).
H.-W. Hubers, Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, R. Muller, Pavlov, Sergey, A. Pohl, S. G. Pavlov, M. Ries, G. Wustefeld, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Ries, Markus, G. Ulm, A. Hoehl   +15 more
core   +1 more source

Multi-layered Graphene Based Optically Tunable Terahertz Absorber [PDF]

, 2019
We present a broadband tunable terahertz (THz) absorber, which consists of cross-shaped multi-layered graphene (MLG) resonators. The proposed absorber possesses almost perfect absorption over the range 0.4—0.8 THz and can be easily fabricated.
Anna V. Baldycheva, Alexander N. Grebenchukov, Anton D. Zaitsev, Evgeniya O. Kovalska, Grebenchukov, Alexander N., Baldycheva, Anna V., Zaitsev, Anton D., Mikhail G. Novoselov, Mikhail K. Khodzitsky, Khodzitsky, Mikhail K., Novoselov, Mikhail G., Kovalska, Evgeniya O.   +11 more
core   +1 more source

Enhanced 3D stacked W-band RF front-end: achieving 6.8W output power with a highly integrated 4-channel power combining amplifier

Journal of Physics Communications
With the increasing application of terahertz technology in modern military, communications, and automotive radar systems, the need for miniaturized and highly integrated terahertz transceiver designs has become more critical.The ability of terahertz ...
Kun Huang, Jun Jiang, Xiaojian Zhang, Xiaochi Lu, Ren Zhou, Yaoling Tian, Xianjin Deng, Wei Su   +7 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

Design of terahertz metasurface structures for biosensing applications based on deep learning methods

Results in Physics
With the advancement of terahertz band applications, extensive research has been conducted on terahertz devices. Terahertz band biosensors find widespread use in biomedical microdetection; however, predicting terahertz spectrum and designing structures ...
Qixiang Zhao, Yanyan Liang, You Lv, Xiaofeng Li   +3 more
doaj   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

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, Marta Loletti, Felix Nippert, Eduardo Bedê Barros, Zbigniew Galazka, Hans Tornatzky, Christian Thomsen, Juan Sebastián Reparaz, Riccardo Rurali, Markus R. Wagner   +9 more
wiley   +1 more source