Results 31 to 40 of about 18,665 (298)

SURFACE OSCILLATIONS IN OPEN RESONATORS WITH CURVILINEAR REFLECTORS [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. The subject of the work is the behavior of "bouncing ball" oscillations and surface oscillations in open resonant systems with curvilinear reflectors embedded in the waveguide transmission line. We seek to determine physical patterns
I. K. Kuzmychov   +3 more
doaj   +1 more source

Imaging signatures of the local density of states in an electronic cavity

open access: yesPhysical Review Research, 2021
We use scanning gate microscopy to study electron transport through an open, gate-defined resonator in a Ga(Al)As heterostructure. Raster-scanning the voltage-biased metallic tip above the resonator, we observe distinct conductance modulations as a ...
Carolin Gold   +11 more
doaj   +1 more source

Resonance states of open quantum dots [PDF]

open access: yesPhysical Review B, 1996
We have computed the spectra of resonance states for several open quantum dot systems. These states are identified using the electron dwell time. The statistics of the spectra are exactly the same as that of the corresponding closed system, even when the level widths are comparable with the average spacing. In particular, for a regular structure, e.g.,
Wang, YJ, Zhu, NJ, Guo, H, Wang, J
openaire   +4 more sources

Improving Parameters of Resonator on Open- and Short-Circuited Stubs

open access: yes, 2022
Розглянуто особливостi частотної залежностi еквiвалентної ємностi розiмкнутого шлейфа та амплiтудно-частотної характеристики (АЧХ) резонатора на основi розiмкнутого та короткозамкнутого шлейфiв.
Нелiн, Є. А.   +1 more
core   +1 more source

Piezoelectric Micromachined Ultrasonic Transducer-Integrated Helmholtz Resonator with Microliter-Sized Volume-Tunable Cavity

open access: yesSensors, 2022
In this study, a piezoelectric micromachined ultrasonic transducer (PMUT) is integrated with a microliter-sized volume-tunable Helmholtz resonator. The passive Helmholtz resonator is constructed using an SU8 photolithography-defined square opening plate ...
Guo-Hua Feng, Wen-Sheng Chen
doaj   +1 more source

Distribution of Resonances for Open Quantum Maps [PDF]

open access: yesCommunications in Mathematical Physics, 2006
60 pages, no figures (numerical results are shown in other references)
Nonnenmacher, Stéphane, Zworski, Maciej
openaire   +3 more sources

Coupling of nanomechanical resonators to controllable quantum systems [PDF]

open access: yes, 2014
The coupling of nanomechanical resonators to controllable quantum systems represents a growing and promising area of research. Recent advances in this field have brought to astonishing results, such as the initialization of a mechanical resonator into ...
Montinaro, Michele
core   +1 more source

AN OPEN RESONATOR WITH INTERNAL INHOMOGENEITIES [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. Investigations on axially symmetric oscillations excited in a hemispherical open resonator (OR) are presented with a specific focus on the effects exerted by internal inhomogeneities in the OR structure.
I. K. Kuzmychov   +4 more
doaj   +1 more source

Increased flow rate of hyperpolarized aqueous solution for dynamic nuclear polarization-enhanced magnetic resonance imaging achieved by an open Fabry–Pérot type microwave resonator [PDF]

open access: yesMagnetic Resonance, 2020
A continuous flow dynamic nuclear polarization (DNP) employing the Overhauser effect at ambient temperatures can be used among other methods to increase sensitivity of magnetic resonance imaging (MRI).
A. Fedotov   +5 more
doaj   +1 more source

On resonances in open systems

open access: yesJournal of Fluid Mechanics, 2004
An open system or open resonator is a domain of wave activity separated from the exterior by a partly open or partly transparent surface. Such open resonators lose energy to infinity through radiation. The numerical computation of the corresponding resonances is complicated by spurious reflections of the outgoing waves at the necessarily finite grid ...
Hein, Stefan   +2 more
openaire   +4 more sources

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