Results 41 to 50 of about 101,887 (285)
An Investigation on Efficient Acoustic Energy Reflection of Flexible Film Bulk Acoustic Resonators
Nanotechnology and Precision Engineering, 2018 : This paper investigates the issues on acoustic energy reflection of flexible film bulk acoustic resonators (FBARs). The flexible FBAR was fabricated with an air cavity in the polymer substrate, which endowed the resonator with efficient acoustic ...
Chuanhai Gao +4 more
doaj +1 more source
Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications
, 2019 Recent significant advances in coupling superconducting qubits to acoustic wave resonators has led to demonstrations of quantum control of surface and bulk acoustic resonant modes as well Wigner tomography of quantum states in these modes. These advances
Bienfait, A. +10 more
core +1 more source
Extraordinary focusing of sound above a soda can array without time reversal [PDF]
, 2015 Recently, Lemoult et al. [Phys. Rev. Lett. 107, 064301 (2011)] used time reversal to focus sound above an array of soda cans into a spot much smaller than the acoustic wavelength in air.
Fang, Nicholas +6 more
core +3 more sources
Thermo-acoustic wave propagation and reflection near the liquid-gas critical point
, 2009 We study the thermo-acoustic wave propagation and reflection near the liquid-gas critical point. Specifically, we perform a numerical investigation of the acoustic responses in a near-critical fluid to thermal perturbations based on the same setup of a ...
A. Onuki +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Numerical Homogenization of the Acoustic Wave Equations with a Continuum of Scales [PDF]
, 2008 In this paper, we consider numerical homogenization of acoustic wave equations with heterogeneous coefficients, namely, when the bulk modulus and the density of the medium are only bounded.
Owhadi, Houman, Zhang, Lei
core +3 more sources
Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers
Advanced Functional Materials, EarlyView.ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng +6 more
wiley +1 more source
Acoustic metafluid for independent manipulation of the mass density and bulk modulus
Materials & Design, 2023 Tuning the mass density and bulk modulus independently is the key to manipulate the propagation of sound wave. Acoustic metamaterials provide a feasible method to realize various acoustic parameters.
Yafeng Bi +7 more
doaj +1 more source
Gravity-related spontaneous collapse in bulk matter
, 2014 In the DP-model, gravity-related spontaneous wave function collapses suppress undesirable Schr\"odinger Cat states. We derive the equations of the model for the hydrodynamic-elastic (acoustic) modes in a bulk.
Diósi, Lajos
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Two-fluid hydrodynamic model for semiconductors [PDF]
, 2018 The hydrodynamic Drude model (HDM) has been successful in describing the optical properties of metallic nanostructures, but for semiconductors where several different kinds of charge carriers are present, an extended theory is required.
Maack, Johan R. +2 more
core +3 more sources