Results 191 to 200 of about 246,481 (370)

All‐Dielectric Metasurface‐Based Gap Waveguides

Advanced Photonics Research, EarlyView.
Dielectric metasurface‐based waveguides (metawavegides) offer several advantages over conventional waveguides, making them ideal for integrated photonics. A design of a metawaveguide composed of a pair of dielectric metasurfaces is proposed, where each metasurface behaves as a wall of either a perfect electric conductor or a perfect magnetic conductor,
Vladimir R. Tuz, Vyacheslav V. Khardikov, Izzatjon Allayarov, Antonio Calà Lesina, Andrey B. Evlyukhin   +4 more
wiley   +1 more source

Polarization-selective unidirectional and bidirectional diffractive neural networks for information security and sharing

Nature Communications
Information security aims to protect confidentiality and prevent information leakage, which inherently conflicts with the goal of information sharing.
Ziqing Guo, Zhiyu Tan, Xiaofei Zang, Teng Zhang, Guannan Wang, Hongguang Li, Yuanbo Wang, Yiming Zhu, Fei Ding, Songlin Zhuang   +9 more
doaj   +1 more source

Visualization of the Beam Waist and Focusability of Intense Short-Pulse Terahertz Radiation.

, 1998
S. Izumida, Shingo Ono, Hideyuki Ohtake, Zhenlin Liu, Nobuhiko Sarukura   +4 more
openalex   +2 more sources

Unveiling the Potential of Ba2Zn5As6 and Ba2Zn5Sb6: A Comprehensive DFT Study

Advanced Theory and Simulations, EarlyView.
This study investigates the elastic, lattice dynamical, optical, and thermoelectric properties of Ba2Zn5X6 (X = As, Sb) compounds. Both materials are mechanically and dynamically stable. Electronic and optical analyses reveal indirect band gap ((Γ‐Y) and strong absorption in the visible region.
Haci Ozisik, Messaoud Caid, Engin Deligoz, Djamel Rached, Youcef Rached   +4 more
wiley   +1 more source

Generation of Terahertz Radiation and Its Spectroscopic Application

, 1997
Masahiko TAM, Shuji Matsuura, Kiyomi Sakai   +2 more
openalex   +2 more sources

Design, Simulation, and Fabrication of High‐Performance Metamaterial Absorber for EMI Mitigation and THz NDT/Imaging Applications: A Shape‐Preserved GHz‐to‐THz Transition Approach

Advanced Theory and Simulations, EarlyView.
A novel metamaterial absorber is designed, simulated, and validated for both 5G mmWave and THz applications, achieving >95.8% and 90% absorption, respectively. Its polarization‐insensitive, scalable design enables applications in THz NDT, imaging, and EMI shielding.
Ahmet Teber
wiley   +1 more source

Mechanism of terahertz lasing in SiGe/Si quantum wells [PDF]

, 2001
Anders Blom, M. A. Odnoblyudov, H. H. Cheng, I. N. Yassievich, K. A. Chao   +4 more
openalex   +1 more source

All‐In‐One Flexible MXene/PET Films via Scalable Scanning Centrifugal Casting for High Transparency and Ultra‐Wide Multispectral Electromagnetic Responses

Advanced Science, EarlyView.
In this study, a novel all‐in‐one MXene/PET film with a highly aligned and compact structure is fabricated via a scanning centrifugal casting method. The resulting film exhibits high optical transparency, low sheet resistance, excellent infrared stealth, and ultra‐broadband electromagnetic shielding across GHz to THz frequencies, highlighting its great
Tian‐Yu Zhang, Qiang‐Qiang Zhao, Bo Sun, Ibrar Ahmed, Ruijia Liu, Chi Liu, Han Wang, Songfeng Pei, Chang Liu, You Zeng   +9 more
wiley   +1 more source

Convertible transmission-reflection time-domain terahertz spectrometer [PDF]

, 2001
M. V. Khazan, Reinhold Meissner, Ingrid Wilke   +2 more
openalex   +1 more source

VOx‐Based Non‐Volatile Radio‐Frequency Switches for Reconfigurable Filter

Advanced Science, EarlyView.
Vanadium oxide‐based memristor devices achieve high performance for next‐generation non‐volatile memory and RF switches. These devices demonstrate a cutoff frequency of ≈4.5 THz, low insertion loss (<0.46 dB), and high isolation (>20 dB) from 0.1 to 20 GHz with stable operation extended to 67 GHz.
Dabin Seo, Dahyeon Kim, Jiyeon Ryu, Changwoo Pyo, Seungchan Lee, Tae‐Sik Yoon, Myungsoo Kim   +6 more
wiley   +1 more source