Results 1 to 10 of about 18,665 (298)
Sound trapping in an open resonator [PDF]
Nature Communications, 2021 Though bound states in the continuum (BICs) in acoustic systems are attractive for acoustic resonators design, acoustic BICs typically show low Q-factor. Here, the authors report a high performance open acoustic resonator that supports symmetry-protected,
Lujun Huang +9 more
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Modelling of open photoacoustic resonators [PDF]
Photoacoustics, 2020 Photoacoustic spectroscopy employs acoustic resonators for signal amplification. Resonators are usually closed, however, in some applications, open resonators are preferred. The opening deteriorates the photoacoustic signal hence reducing the sensitivity
Said Ali Said El-Busaidy +3 more
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Shape Optimization of an Open Photoacoustic Resonator
Applied Sciences, 2021 Photoacoustic (PA) measurements with open resonators usually provide poor detection sensitivity due to signal leakage at the resonator opening. We have recently demonstrated three different approaches for modelling the photoacoustic signal of open ...
Said El-Busaidy +3 more
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Optimized T-shaped resonator via local enhancement model integration within a cell for enhanced Rydberg-atom receiver sensing [PDF]
Communications EngineeringRydberg atom with resonators is regarded as promising atomic receivers to surpass conventional receivers’ sensitivity. However, previous research has presented diverse open resonator structures, focusing on design yet lacking in theoretical guidance ...
Bo Wu +6 more
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Observation of electronic modes in open cavity resonator
Nature Communications, 2023 Electron optics draws upon the resemblance between electron and optical waves. Here, the authors report on the observation of electron mode formation in open cavity resonators realized in a GaAs/AlGaAs two-dimensional electronic gas.
Hwanchul Jung +11 more
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THE TE₀₁ WAVE EXCITATION IN A CIRCULAR WAVEGUIDE USING HIGHER-ORDER MODES OF AN OPEN RESONATOR [PDF]
Radio Physics and Radio Astronomy, 2023 Subject and Purpose. Peculiarities of the TE₀₁ wave excitation in a circular waveguide located in the center of the flat mirror of a hemispherical open resonator (OR) are studied using the OR oscillation type TEМ₃₀q and the OR degenerate oscillation type
I. K. Kuzmichov +4 more
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Summation of Powers in Open Resonator with Slotted Coupling Elements
Advanced Electromagnetics, 2021 The paper analyzes the summation of the powers of two sources in a hemispherical open resonator (OR) during its tuning. The first higher axially asymmetric TEM10q oscillation mode is excited in the resonator.
I. Kuzmichev +2 more
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East European Journal of Physics, 2021 The paper discusses the similarity between dissipative generation and superradiance regimes for systems of excited quantum emitters placed in an open cavity. In the case of the existence of a resonator field due to reflections from the ends of the system,
Volodymyr V. Kuklin +2 more
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THE RESONANT SYSTEM OF A SUB-TERAHERTZ LOCAL OSCILLATOR
Radio Physics and Radio Astronomy, 2022 Purpose. The excitation efficiency is investigated of the first higher-order axially asymmetric oscillation mode (TEM10q) excited in a hemispherical open resonator (OR) at the frequencies of the fundamental and second-order harmonics of the Gunn diode in
I. K. KUZMICHEV +4 more
doaj +1 more source
Novel Chipless RFID Tags Using Eight State Triple-Mode Resonators
IEEE Access, 2023 For multi-resonator based chipless radio frequency identification (RFID) tags, a novel triple-mode resonator is designed by loading open-circuited stubs to a transmission line which is coupled to input and output ports.
Engin Dogan +2 more
doaj +1 more source