Chunying Ding

Scattering of a high-order Bessel beam by a sphere

The rigorous theory for the scattering of a high-order Bessel beam (HOBB) by a sphere is presented. The Beam Shape Coefficients (BSCs) for HOBB are calculated using Integral Localized Approximation (ILA), and the scattering coefficients are expanded using Debye series (DSE). The far-field scattered intensities are simulated, and the effect of angle of axicon and the order of HOBB on the scattered intensity is studied.

Fiber-Based Cylindrical Vector Beams and Its Applications to Optical Manipulation

Radiation pressure force (RPF) indeced by a focused laser beam has bean widely utlized for the manipulation of small particles, and has found more and more applications in various fields including physics [1], biology [2], and optofludics [3, 4]. Accurate prediction of optical force exerted on particles enables better understanding of the physical mechanicsm, and is of great help for the design and improvement of optical tweezers.