Acoustic radiation force on a sphere in a progressive and standing zero-order quasi-Bessel-Gauss beam

被引:19
作者
Jiang, Chen [1 ]
Liu, Xiaozhou [1 ]
Liu, Jiehui [1 ]
Mao, Yiwei [1 ]
Marston, Philip L. [2 ]
机构
[1] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Inst Acoust & Sch Phys, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China
[2] Washington State Univ, Dept Phys & Astron, Washington, DC 99164 USA
基金
中国国家自然科学基金;
关键词
Acoustic radiation force; Zero-order quasi-Bessel-Gauss beam; Beam widths; Beam coefficients; Half-cone angle; Radiation force enhancement; PULLING FORCE; WAVE-FIELD; SCATTERING; PROPAGATION; PRESSURE; LASER;
D O I
10.1016/j.ultras.2016.12.011
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
By means of series expansion theory, the incident quasi-Bessel-Gauss beam is expanded using spherical harmonic functions, and the beam coefficients of the quasi-Bessel-Gauss beam are calculated. According to the theory, the acoustic radiation force function, which is the radiation force per unit energy on a unit cross-sectional surface on a sphere made of diverse materials and immersed in an ideal fluid along the propagation axis of zero-order quasi-Bessel-Gauss progressive and standing beams, is investigated. The acoustic radiation force function is calculated as a function of the spherical radius parameter k alpha and the half-cone angle ss with different beam widths in a progressive and standing zero-order BesselGauss beam. Simulation results indicate that the acoustic radiation forces with different waist radii demonstrate remarkably different features from those found in previous studies. The results are expected to be useful in potential applications such as acoustic tweezers. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 9
页数:9
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