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Title: Axial acoustic radiation force on a sphere in Gaussian field

Abstract

Based on the finite series method, the acoustical radiation force resulting from a Gaussian beam incident on a spherical object is investigated analytically. When the position of the particles deviating from the center of the beam, the Gaussian beam is expanded as a spherical function at the center of the particles and the expanded coefficients of the Gaussian beam is calculated. The analytical expression of the acoustic radiation force on spherical particles deviating from the Gaussian beam center is deduced. The acoustic radiation force affected by the acoustic frequency and the offset distance from the Gaussian beam center is investigated. Results have been presented for Gaussian beams with different wavelengths and it has been shown that the interaction of a Gaussian beam with a sphere can result in attractive axial force under specific operational conditions. Results indicate the capability of manipulating and separating spherical spheres based on their mechanical and acoustical properties, the results provided here may provide a theoretical basis for development of single-beam acoustical tweezers.

Authors:
; ;  [1]
  1. Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093 (China)
Publication Date:
OSTI Identifier:
22492634
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1685; Journal Issue: 1; Conference: 20. international symposium on nonlinear acoustics, Ecully (France), 29 Jun - 3 Jul 2015, 2. international sonic boom forum, Ecully (France), 29 Jun - 3 Jul 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACOUSTICS; BEAMS; DISTANCE; GAUSS FUNCTION; MECHANICAL PROPERTIES; PARTICLES; SPHERES; SPHERICAL CONFIGURATION; ULTRASONIC WAVES; WAVELENGTHS

Citation Formats

Wu, Rongrong, Liu, Xiaozhou, and Gong, Xiufen. Axial acoustic radiation force on a sphere in Gaussian field. United States: N. p., 2015. Web. doi:10.1063/1.4934405.
Wu, Rongrong, Liu, Xiaozhou, & Gong, Xiufen. Axial acoustic radiation force on a sphere in Gaussian field. United States. https://doi.org/10.1063/1.4934405
Wu, Rongrong, Liu, Xiaozhou, and Gong, Xiufen. 2015. "Axial acoustic radiation force on a sphere in Gaussian field". United States. https://doi.org/10.1063/1.4934405.
@article{osti_22492634,
title = {Axial acoustic radiation force on a sphere in Gaussian field},
author = {Wu, Rongrong and Liu, Xiaozhou and Gong, Xiufen},
abstractNote = {Based on the finite series method, the acoustical radiation force resulting from a Gaussian beam incident on a spherical object is investigated analytically. When the position of the particles deviating from the center of the beam, the Gaussian beam is expanded as a spherical function at the center of the particles and the expanded coefficients of the Gaussian beam is calculated. The analytical expression of the acoustic radiation force on spherical particles deviating from the Gaussian beam center is deduced. The acoustic radiation force affected by the acoustic frequency and the offset distance from the Gaussian beam center is investigated. Results have been presented for Gaussian beams with different wavelengths and it has been shown that the interaction of a Gaussian beam with a sphere can result in attractive axial force under specific operational conditions. Results indicate the capability of manipulating and separating spherical spheres based on their mechanical and acoustical properties, the results provided here may provide a theoretical basis for development of single-beam acoustical tweezers.},
doi = {10.1063/1.4934405},
url = {https://www.osti.gov/biblio/22492634}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1685,
place = {United States},
year = {Wed Oct 28 00:00:00 EDT 2015},
month = {Wed Oct 28 00:00:00 EDT 2015}
}