Title :
A New Method Based on Conservation Momentum to Calculate the Trapping Force Using FDTD Algorithm
Author :
Yang, Hao ; Feng, Guoying ; Zhou, Shouhuan ; Ding, Hongyuan
Author_Institution :
Dept. of Optoelectron., Sichuan Univ., Chengdu, China
Abstract :
In this paper, A new method based on the conservation of momentum theory to calculate the trappping force on microsphere are presented. Using 2-D FDTD algorithm, the distribution of electric and magnetic fields in trapping system is simulated, then the monmentum density distribution and trapping force can be easily getted. Many parameters are taken into accounted involving wavelength of optical source, waist radius, diameter of microsphere and refractive index. The simulation results are in good aggreement with the other experimental observation.
Keywords :
Charge carrier processes; Dielectrics; Finite difference methods; Geometrical optics; Optical refraction; Optical scattering; Optical variables control; Particle beams; Refractive index; Time domain analysis;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu, China
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504327
