Results 91 to 100 of about 2,371 (210)

Metal/Si Nanowire Arrays for Hot Electron Catalysis

Small, EarlyView.
Silicon nanowire arrays enhance plasmon‐driven catalysis by strengthening light–matter interactions on Au and Ag nanostructured coatings. Hotspot accessibility, rather than near‐field intensity alone, governs photocatalytic performance, while Ag nanoshells exhibit superior activity. The work establishes high‐surface‐area Si nanowire arrays as versatile
Theresa Bartschmid, Furkan Atalay, Maurizio Musso, Amin Farhadi, Johannes Menath, Maret Ickler, Nicolas Vogel, Gilles R. Bourret   +7 more
wiley   +1 more source

A Wideband Circularly Polarised High‐Gain Antenna Using Array Technology and Truncated Dielectric Plates

IET Microwaves, Antennas & Propagation
A gain enhancement method is presented for a circularly polarised (CP) wideband Fabry–Perot resonator antenna (FPRA). The proposed antenna structure consists of a multilayer configuration of closely spaced truncated dielectric plates (TDPs) and a ...
Zhixin Lei, Zhiming Liu, Bingtao Tan, Huilin Zhou, Yuhao Wang, Hao Xu   +5 more
doaj   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Relative Effects of Fabry‐Perot, Mie, and Guided‐Mode Resonance in Periodic Photonic Lattice Physics

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
The physical origins of resonance effects in one‐dimensional periodic photonic lattices are studied to assess the relative roles of Fabry–Perot, Mie, and guided‐mode resonance mechanisms. It is shown that lattice resonance is fundamentally governed by lateral leaky Bloch modes and their coupling to external radiation via guided‐mode resonance.
Yu Sung Choi, Keisuke Ozawa, Jae Woong Yoon, Junichi Inoue, Shogo Ura, Yeong Hwan Ko, Robert Magnusson   +6 more
wiley   +1 more source

Band‐Selective, Low‐Dispersion Terahertz Attenuators Based on 3D Bulk Metamaterials Leveraging De‐latticed Cross‐Bar Resonator Ensembles

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This paper presents 3D bulk metamaterials in which diced cross‐bar meta‐grains are randomly dispersed in a polymer matrix by molding. The de‐latticed composite provides isotropic and band‐selective THz attenuation with over tenfold dispersion suppression compared to the periodic metasurface.
Zhen Liu, Chikaho Nagashima, Yoshiaki Kanamori   +2 more
wiley   +1 more source

Optical Responses From Zero Optical‐Path‐Length Object

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This work address a fundamental question—what is the ultimately minimal embodiment of optical objects that produce useful optical effects? In fact, such an object does not require nonzero physical and optical‐path‐length volume as opposed to the conventional perception.
Da Yong Lee, Moongul Byun, Robert Magnusson, Jae Woong Yoon   +3 more
wiley   +1 more source

Velocity‐Tunable Exciton‐Photon Hybridization in Cathodoluminescence

Advanced Functional Materials, Volume 36, Issue 62, 3 August 2026.
Transition‐radiation resonances in suspended thin crystals hybridise with excitonic transitions under free‐electron excitation. By tuning the electron energy, the photonic resonances are continuously detuned across the exciton states, enabling controllable exciton–photon hybridisation below the diffraction limit without altering the system geometry ...
Sven Ebel, Martin Nørgaard, Christian Nicolaisen Hansen, N. Asger Mortensen, Sergii Morozov   +4 more
wiley   +1 more source

High Performance Durable Vanadium Dioxide Spectral Selective Modulation Smart Windows

Advanced Functional Materials, Volume 36, Issue 63, 6 August 2026.
Crystallinity‐enhanced VO2 nanoparticles with a self‐limited amorphous oxidation shell achieve an order of magnitude durability improvement and high spectral selective modulation performance (luminous transmittance of 28.5%, solar modulation of 10.5%, and mid‐infrared emissivity modulation of 0.5) for smart windows.
Bin Li, Di Zhang, Guanya Wang, Rong Liu, Shouqin Tian, Xiujian Zhao, Zhimei Sun, Yi Long   +7 more
wiley   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

Advanced Optical Materials, Volume 14, Issue 29, 7 August 2026.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao, Kazuho Harada, Qian Liu, Isao Morohashi, Xu Fang, Kazuhiko Hirakawa, Ya Zhang   +6 more
wiley   +1 more source

Quasi‐Standard Platform of AlScN Piezoelectric Integrated MEMS Technology (PIMT) For Multi‐Project Wafer Fabrication

Advanced Sensor Research, Volume 5, Issue 8, August 2026.
This report presents an 8‐inch quasi‐standard piezoelectric integrated MEMS technology (PIMT) platform which, through the integration of core and additional processes, reliably supports three rounds of multi‐project wafer (MPW) fabrication. Whilst ensuring support for mass production processes, the platform offers certain flexibility, providing a ...
Yongquan Su, Yuqiang Hu, Xingwang Zhu, Wenli Xue, Hao Huang, Yichen Liu, Jiachen Han, Anna Li, Cheng Zhang, Wanzhu Qiao, Jiaqi Huang, Peng Ding, Qianying Sun, Huan Liu, Tao Wu, Lihao Wang, Yang Wang, Hao Chen, Zhenyu Wu   +18 more
wiley   +1 more source