Moore NJ, Alonso MA. Mie scattering of highly focused, scalar fields: an analytic approach.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2016;
33:1236-1243. [PMID:
27409679 DOI:
10.1364/josaa.33.001236]
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Abstract
We present a method for modeling the scattering of a focused scalar field incident on a spherical particle. This approach involves the expansion of the incident field in an orthonormal basis of closed-form solutions of the Helmholtz equation which are nonparaxial counterparts of Laguerre-Gaussian beams. This method also allows for the analytic calculation of the forces and torques exerted on a particle at any position with respect to the beam's focus.
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