Results 31 to 40 of about 6,778,426 (314)

Single-molecule strong coupling at room temperature in plasmonic nanocavities

open access: yesNature, 2016
Photon emitters placed in an optical cavity experience an environment that changes how they are coupled to the surrounding light field. In the weak-coupling regime, the extraction of light from the emitter is enhanced.
R. Chikkaraddy   +9 more
semanticscholar   +1 more source

Stationary and traveling wave states of the Kuramoto model with an arbitrary distribution of frequencies and coupling strengths. [PDF]

open access: yesPhysical Review Letters, 2012
We consider the Kuramoto model of an ensemble of interacting oscillators allowing for an arbitrary distribution of frequencies and coupling strengths.
D. Iatsenko   +3 more
semanticscholar   +1 more source

Interplay of coupling and common noise at the transition to synchrony in oscillator populations

open access: yesScientific Reports, 2016
There are two ways to synchronize oscillators: by coupling and by common forcing, which can be pure noise. By virtue of the Ott-Antonsen ansatz for sine-coupled phase oscillators, we obtain analytically tractable equations for the case where both ...
Anastasiya V. Pimenova   +3 more
doaj   +1 more source

High-frequency air-coupled transducers [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1990
High-frequency air-coupled ultrasonic transducers are used in industrial applications for detecting or ranging with high resolution. The improvement of the coupling between PZT and air is of importance for the transducer performance. Unfortunately, it is difficult to find a material with proper acoustical impedance and small attenuation at high ...
Xiaoqi Bao   +2 more
openaire   +1 more source

A group theoretic approach to generalized harmonic vibrations in a one dimensional lattice

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Beginning with a group theoretical simplification of the equations of motion for harmonically coupled point masses moving on a fixed circle, we obtain the natural frequencies of motion for the array.
J. N. Boyd, P. N. Raychowdhury
doaj   +1 more source

Electromagnetic Signature of a Quadcopter Drone and Its Relationship With Coupling Mechanisms

open access: yesIEEE Access, 2019
This paper presents an investigation of the electromagnetic signature and the coupling mechanism of quadcopter drones with incident electromagnetic (EM) wave and radar cross section (RCS) analysis.
Sangin Kim   +5 more
doaj   +1 more source

Dynamic coupling characteristics of the beam and plate components of the orthogonally stiffened plate

open access: yesZhongguo Jianchuan Yanjiu, 2023
[Objective] Orthogonally stiffened plates with different plate-to-beam bending stiffness ratios are taken as the research objects to uncover the dynamic coupling characteristics of the beam and plate components of orthogonally stiffened plates, and ...
Dong TANG   +4 more
doaj   +1 more source

Experimental implementations of cavity-magnon systems: from ultra strong coupling to applications in precision measurement [PDF]

open access: yesNew Journal of Physics, 2019
Several experimental implementations of cavity-magnon systems are presented. First an Yttrium Iron Garnet (YIG) block is placed inside a re-entrant cavity where the resulting hybrid mode is measured to be in the ultra strong coupling (USC) regime.
Graeme R. Flower   +3 more
semanticscholar   +1 more source

Numerical and Experimental Investigations of Coupling Effects in Anisotropic Elastic Rotors

open access: yesInternational Journal of Rotating Machinery, 1999
It is known that in elastic disc-shaft systems in particular, the one-nodal-diameter mode of the discs can be highly coupled with the bending modes of the shaft.
Horst Irretier   +2 more
doaj   +1 more source

Numerical analysis of the spin dynamics in bilayer nanodots with interlayer antiferromagnetic coupling

open access: yesAIP Advances, 2019
Synthetic antiferromagnetic nanodots with perpendicular magnetic anisotropy are promising candidates for improving the performance of magnetic random-access memory or spin torque nano-oscillators; however, the mechanism for the interlayer ...
X. Ya   +3 more
doaj   +1 more source

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