Results 111 to 120 of about 176,774 (326)

Terahertz Faraday Rotation of SrFe₁₂O₁₉ Hexaferrites Enhanced by Nb Doping

, 2022
Zimeng Hu, Gavin B. G. Stenning, Vladimír Kovaľ, Jiyue Wu, Bin Yang, Alisa Leavesley, Richard Wylde, Michael J. Reece, Chenglong Jia, Haixue Yan   +9 more
openalex   +1 more source

Terahertz polarization imaging

Optics Letters, 2005
We present a new method to measure the polarization state of a terahertz pulse by using a modified electro-optic sampling setup. To illustrate the power of this method, we show two examples in which the knowledge of the polarization of the terahertz pulse is essential for interpreting the results: spectroscopy measurements on polystyrene foam and ...
Van der Valk, N.C.J. (author), Van der Marel, W.A.M. (author), Planken, P.C.M. (author)   +2 more
openaire   +5 more sources

Superionic Amorphous Li2ZrCl6 and Li2HfCl6

Advanced Materials, EarlyView.
Amorphous Li2HfCl6 and L2ZrCl6 are shown to be promising solid‐state electrolytes with predicted ionic conductivities >20 mS·cm−1. Molecular dynamics simulations with machine‐learning force fields reveal that anion vibrations and flexible MCl6 octahedra soften the Li coordination cage and enhance mobility. Correlation between Li‐ion diffusivity and the
Shukai Yao, De‐en Jiang
wiley   +1 more source

InGaN/GaN Distributed Feedback Laser Diodes with Surface Gratings and Sidewall Gratings

Micromachines, 2019
A variety of potential applications such as visible light communications require laser sources with a narrow linewidth and a single wavelength emission in the blue light region. The gallium nitride (GaN)-based distributed feedback laser diode (DFB-LD) is
Zejia Deng, Junze Li, Mingle Liao, Wuze Xie, Siyuan Luo   +4 more
doaj   +1 more source

Trapped Fluorine Enables Thermally Stable Broadband Photodetection in Graphene/Fluorinated Graphene Heterostructure

Advanced Materials Technologies, EarlyView.
Fluorinated graphene has opened new opportunities for real‐world applications; however, its working and thermal stability are key issues for practical use. This study successfully demonstrates the stability of a fluorinated graphene‐based photodetector, achieved through a graphene, fluorinated graphene heterostructure (Gr/F‐Gr HS).
Mukesh Kumar Thakur, Javier Varillas, Oleksandr Volochanskyi, Golam Haider, Jan Plšek, Farjana J. Sonia, Álvaro Rodríguez, Jaganandha Panda, Martin Mergl, Otakar Frank, Jana Vejpravová, Martin Kalbáč   +11 more
wiley   +1 more source

Bias current and temperature dependence of polarization dynamics in spin-lasers with electrically tunable birefringence

AIP Advances, 2020
We investigate and compare the intensity and polarization dynamics in a vertical-cavity surface-emitting laser (VCSEL) with a monolithically integrated, electrically controlled birefringence tuning mechanism.
M. Lindemann, N. Jung, P. Stadler, T. Pusch, R. Michalzik, M. R. Hofmann, N. C. Gerhardt   +6 more
doaj   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Transfer learning enabled transformer-based generative adversarial networks for modeling and generating terahertz channels

Communications Engineering
Terahertz communications are envisioned as a promising technology for the sixth generation and beyond wireless systems, which can support wireless links with Terabits-per-second (Tbps) data rates.
Zhengdong Hu, Yuanbo Li, Chong Han
doaj   +1 more source

Ultrathin Terahertz Planar Elements [PDF]

, 2013
Dan Hu, Xinke Wang, Shengfei Feng, Jiasheng Ye, Wenfeng Sun, Qiang Kan, Peter J. Klar, Yan Zhang   +7 more
openalex   +1 more source

Cellulose‐Nanofiber‐Based Layered Sub‐Terahertz Absorbing Sheets for B5G/6G Applications

Advanced Materials Technologies, EarlyView.
We report a sub‐terahertz absorber made of biodegradable cellulose‐nanofiber (CNF), potentially useful for B5G/6G devices to achieve electromagnetic compatibility in an eco‐friendly way. The absorber is 120 µm thick and consists of two carbon‐nanotube‐dispersed CNF layers and one pure CNF layer.
Kosaku Kato, Shiyu Feng, Zixi Zhao, Verdad C. Agulto, Ami Mizui, Takaaki Kasuga, Shun Ishioka, Masaya Nogi, Ichiro Ota, Motoharu Haga, Minoru Ueshima, Makoto Nakajima   +11 more
wiley   +1 more source