Analysis of the radiation force on a single spherical particle by a Laguerre Gaussian beam
Proceedings of SPIE(2019)
Abstract
In terms of spherical vector wave functions (SVWFs) utilizing integral localized approximation method, the incident field and scattering field expansion coefficients can be derived. Using Generalized Lorenz Mie Theory (GLMT), the radiation force (RF) exerted on a single spherical particle by a LG beam is calculated. The effects of OAM states, beam waist, particle size, dielectric constants of particle and surrounding medium of axial RF have been numerically analyzed in detail.
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Key words
radiation force (RF),optical trapping,the Mie scattering theory,particle scattering,Laguerre Gaussian (LG) beam,integral localized approximation
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