Results 41 to 50 of about 183,094 (279)
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
Results in Optics, 2021 Experimental and simulation investigations on laser-induced acoustic wave propagation and the optical refraction effects by varying the focusing lens distance from the water-surface have been presented.
Xiaosong Shi +3 more
doaj +1 more source
Calculation for Acoustic Radiation Force from Rectangular Weakly Focusing Transducer Using the Ray Acoustic Model [PDF]
Archives of Acoustics, 2022 Based on the ray acoustic model, a new relationship between the radiation force and the acoustic power is studied for a rectangular weakly focusing transducer. The effect of pressure reflection coefficient on this model is discussed.
Lili Yu +3 more
doaj +1 more source
Similarities between action potentials and acoustic pulses in a van der Waals fluid [PDF]
, 2018 An action potential is typically described as a purely electrical change that propagates along the membrane of excitable cells. However, recent experiments have demonstrated that non-linear acoustic pulses that propagate along lipid interfaces and ...
Mussel, Matan, Schneider, Matthias F.
core +3 more sources
Menger fractal structure with negative refraction and sound tunnelling properties
Materials Research Express, 2019 We construct new quasi-three-dimensional fractal acoustic metamaterials based on adoption of the Menger structure, which offers extraordinary parameters such as double-negative properties and a near-zero density.
Yu Liu +6 more
doaj +1 more source
Photonics, 2021 Optical-resolution photoacoustic microscopy (OR-PAM) is a promising noninvasive biomedical imaging technology with label-free optical absorption contrasts. Performance of OR-PAM is usually closely related to the optical-acoustic combiner.
Xiang Zhang +7 more
doaj +1 more source
Focusing of surface-acoustic-wave fields on (100) GaAs surfaces [PDF]
, 2003 Focused surface-acoustic waves (SAWs) provide a way to reach intense acoustic fields for electroand optoacoustic applications on semiconductors. We have investigated the focusing of SAWs by interdigital transducers (IDTs)deposited on (100)-oriented GaAs ...
Alsina +27 more
core +2 more sources
Tunable acoustic passive phased array based on double-opening resonant rings
AIP Advances, 2023 The special structural design of acoustic metamaterials further extends acoustic properties of the materials. We design a tunable acoustic passive phased array based on double-opening resonant rings, which modulates the acoustic waves only by the ...
Shulei Gong +5 more
doaj +1 more source
Breaking the Rayleigh-Plateau instability limit using thermocavitation within a droplet [PDF]
, 2013 We report on the generation of liquid columns that extend far beyond the traditional Rayleigh-Plateau instability onset. The columns are driven by the acoustic pressure wave emitted after bubble collapse.
Aguilar, G +5 more
core +1 more source
Sensors, 2023 In the article, the study of the quality of tomogram focusing during the inspection of objects with curved surfaces by flexible acoustic array was described.
Dmitry A. Sednev +4 more
doaj +1 more source