Results 121 to 130 of about 1,206,578 (296)

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

Second harmonic optical vortex generation in air

We demonstrate second harmonic vortex generation in atmospheric pressure air using tightly focused femtosecond laser beam.
Kazansky, P.G., Danielius, R., Beresna, M., Svirko, Y., Barkauskas, M.   +4 more
core   +1 more source

Polaritonic Materials: A Comparative Study on the Relaxation Kinetics in Fabry–Perot versus Plasmonic Cavities

Advanced Optical Materials, EarlyView.
Comparing Fabry–Perot and plasmonic nanorod cavities reveals how the number of dark states dictates polariton relaxation. The high number of dark states results in a polaritonic bottleneck, while reducing the number of dark states enables to measure the polaritonic decay.
Nicola Peruffo, Jack M. Woolley, Rahul Bhuyan, Raj Pandya, James Lloyd‐Hughes, Karl Börjesson   +5 more
wiley   +1 more source

Modal Sensitivity Analysis for Series Harmonic Resonance in Power System

, 2011
Harmonic resonance is composed of series and parallel harmonic resonance. It is closely related to the singularity of a network loop impedance matrix or node admittance matrix.
Kai Pei Liu, Kai Yu Wang, Dong Xu Wang, Cai Xia Yang, Da Lu Li   +4 more
core   +1 more source

Silica microfibres for broadband third harmonic generation

We report broadband third harmonic generation via intermodal phase matching in silica microfibres of several centimetres. A 5 dB conversion bandwidth exceeding 36 nm was recorded, with harmonic power detected over a 150 nm ...
Ding, M., Codemard, C.A., Jung, Y., Broderick, N.G.R., Lee, T., Brambilla, G.   +5 more
core   +1 more source

Near‐Field Nanoimaging of Programmable Phase Transitions in Ga+‐Irradiated VO2

Advanced Optical Materials, EarlyView.
Focused Ga+ ion irradiation locally reprograms the insulator‐to‐metal transition in VO2 thin films. Infrared and terahertz near‐field nanoimaging reveals that low irradiation doses localize the resistive‐switching filament within the defect region, while high doses suppress switching there and redirect the filament into pristine VO2.
Sarabpreet Singh, Nareg Ghazikhanian, Muhammad Asjad, Erbin Qiu, Ivan K. Schuller, Yohannes Abate   +5 more
wiley   +1 more source

Extrinsic Limitations of Stealthy Hyperuniform Devices

Advanced Optical Materials, EarlyView.
Stealthy hyperuniform devices exhibit a scattering‐free angular region whose extent follows a simple quenching equation. Experimental measurements confirm this prediction but reveal quenching efficiencies far below theoretical expectations. Multiple scattering and finite‐size effects are quantified, establishing realistic performance limits for ...
Yuhao Xu, Miao Chen, Louis Forestier, Franck Carcenac, Laurent Mazenq, Philippe Lalanne   +5 more
wiley   +1 more source

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

Analysis of Resonance Mechanism for Locomotive-grid System and Its Simulation Study

Kongzhi Yu Xinxi Jishu, 2014
It generalized the new harmonic characteristics of domestic electrified railway. The mechanisms of high-frequency resonance of transmission of locomotive-grid and RC branch burn-out accident in DC locomotives were analyzed and simulated,locomotives-grid,
ZHANG Jie, HE Duochang, ZHANG Zhixue
doaj  

Harmonic impedance studies of Swedish railway power system using wide-area modeling approach

Railway Engineering Science
This paper presents a comprehensive framework for wide-area modeling and harmonic resonance assessment in the AC single-phase Swedish electric railway power system (ERPS).
Rafael S. Salles, Sarah K. Rönnberg
doaj   +1 more source