title: Acoustic radiation force on a sphere in a progressive and standing zero-order quasi-Bessel-Gauss beam.
abstract: 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 ka and the half-cone angle β with different beam widths in a progressive and standing zero-order Bessel-Gauss 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.
authors.affiliation: Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. Electronic address: xzliu@nju.edu.cn.
authors.forename: Xiaozhou
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Jiehui
authors.initials: J
authors.lastname: Liu
authors.affiliation: Key Laboratory of Modern Acoustics, Institute of Acoustics and School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Yiwei
authors.initials: Y
authors.lastname: Mao
authors.affiliation: Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, United States.
authors.forename: Philip L
authors.initials: PL
authors.lastname: Marston
keywords: Acoustic radiation force; Beam coefficients; Beam widths; Half-cone angle; Radiation force enhancement; Zero-order quasi-Bessel-Gauss beam