摘要
By investigating the cross-spectral density of partially coherent multi-rotating elliptical Gaussian beams （REGBs） that propagate through a focusing optical system, we obtain the radiation force on a Rayleigh particle. The radiation force distribution is studied under different beam indexes, coherence widths, and elliptical ratios of the partially coherent multi REGBs. The transverse and the longitudinal trapping ranges can increase at the focal plane by increasing the beam index or decreasing the coherence width. The range of the trapped particle radii increases as the elliptical ratio increases. Furthermore, we analyze the trapping stability.
By investigating the cross-spectral density of partially coherent multi-rotating elliptical Gaussian beams （REGBs） that propagate through a focusing optical system, we obtain the radiation force on a Rayleigh particle. The radiation force distribution is studied under different beam indexes, coherence widths, and elliptical ratios of the partially coherent multi REGBs. The transverse and the longitudinal trapping ranges can increase at the focal plane by increasing the beam index or decreasing the coherence width. The range of the trapped particle radii increases as the elliptical ratio increases. Furthermore, we analyze the trapping stability.
基金
supported by the National Natural Science Foundation of China (Nos. 11374108, 10904041, and 11374107)
the Foundation for the Author of Guangdong Province Excellent Doctoral Dissertation (No. SYBZZXM201227)
the Foundation of Cultivating Outstanding Young Scholars (“Thousand, Hundred, Ten” Program) of Guangdong Province in China
Support was also provided by the CAS Key Laboratory of Geospace Environment, University of Science and Technology of China
