Title :
Acoustic radiation force on cylindrical particles near subwavelength slits
Author :
Chen Wang ; Yan Kang ; Feiyan Cai ; Fei Li ; Long Meng ; Hairong Zheng
Author_Institution :
Sino-Dutch Biomed. & Inf. Eng. Sch., Northeastern Univ., Shenyang, China
Abstract :
We theoretically and experimentally investigate the acoustic radiation force (ARF) on cylindrical steel particle near subwavelength slits. By using finite-difference-time-domain (FDTD) method combined with momentum-flux tensor, the dependence of the ARF on the frequency, width of slit are analyzed, respectively. It is predicted that the particle near the slit surface could suffer a trapping effect when the resonance of the slit occurs. This trapping effect is also observed in experiment.
Keywords :
acoustic resonance; acoustic wave effects; finite difference time-domain analysis; FDTD; acoustic radiation force; acoustic resonance; cylindrical steel particle; finite-difference-time-domain method; momentum-flux tensor; subwavelength slits; Acoustics; Charge carrier processes; Finite difference methods; Force; Resonant frequency; Steel; Time-domain analysis; acoustic radiation force; subwavelength slits; trapping cylindrical particles;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0489
