scholarly journals Radiation force of highly focused cosine-Gaussian beam on a particle in the Rayleigh scattering regime

2010 ◽  
Vol 59 (6) ◽  
pp. 3959
Author(s):  
Jiang Yun-Feng ◽  
Lu Xuan-Hui ◽  
Zhao Cheng-Liang
Keyword(s):  
Gaussian Beam ◽  
Rayleigh Scattering ◽  
Radiation Force

scholarly journals Inter-Particle Effects with a Large Population in Acoustofluidics

Actuators ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 101
Author(s):  
Kun Jia ◽  
Yulong Wang ◽  
Liqiang Li ◽  
Jian Chen ◽  
Keji Yang
Keyword(s):  
Rayleigh Scattering ◽  
Acoustic Radiation ◽  
Large Population ◽  
Scattering Problem ◽  
Relative Size ◽  
Radiation Force ◽  
Mie Scattering ◽  
Separation Distance ◽  
High Concentration ◽  
Theoretical Understanding

The ultrasonic manipulation of cells and bioparticles in a large population is a maturing technology. There is an unmet demand for improved theoretical understanding of the particle–particle interactions at a high concentration. In this study, a semi-analytical method combining the Jacobi–Anger expansion and two-dimensional finite element solution of the scattering problem is proposed to calculate the acoustic radiation forces acting on massive compressible particles. Acoustic interactions on arrangements of up to several tens of particles are investigated. The particle radius ranges from the Rayleigh scattering limit (ka«1) to the Mie scattering region (ka≈1). The results show that the oscillatory spatial distribution of the secondary radiation force is related to the relative size of co-existing particles, not the absolute value (for particles with the same radius). In addition, the acoustic interaction is non-transmissible for a group of identical particles. For a large number of equidistant particles arranged along a line, the critical separation distance for the attraction force decreases as the number of particles increases, but eventually plateaus (for 16 particles). The range of attraction for the formed cluster is stabilized when the number of aggregated particles reaches a certain value.

scholarly journals Dynamic Radiation Force of a Pulsed Gaussian Beam Acting on Rayleigh Dielectric Sphere

2007 ◽  
Vol 15 (17) ◽  
pp. 10615 ◽  
Author(s):  
Li-Gang Wang ◽  
Cheng-Liang Zhao
Keyword(s):  
Gaussian Beam ◽  
Radiation Force ◽  
Dielectric Sphere

scholarly journals Analysis of the radiation force and torque exerted on a chiral sphere by a Gaussian beam

2013 ◽  
Vol 21 (7) ◽  
pp. 8677 ◽  
Author(s):  
Qing-Chao Shang ◽  
Zhen-Sen Wu ◽  
Tan Qu ◽  
Zheng-Jun Li ◽  
Lu Bai ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Radiation Force

Radiation force on a chiral sphere by a Gaussian beam

2010 ◽  
Author(s):  
Qing-chao Shang ◽  
Zhen-sen Wu ◽  
Zheng-jun Li ◽  
Huan Li
Keyword(s):  
Gaussian Beam ◽  
Radiation Force
Sign in / Sign up

Export Citation Format

Share Document