Rigorous analysis of spheres in Gauss-Laguerre beams

In this paper we develop a rigorous formulation of Gauss- Laguerre beams in terms of Mie scattering coefficients which permits us to quasi-analytically treat the interaction of a spherical particle located in the focal region of a possibly high numerical aperture lens illuminated by a Gauss-Laguerre...

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Bibliographic Details
Published inOptics express Vol. 15; no. 20; pp. 13360 - 13374
Main Authors van de Nes, A S, Török, P
Format Journal Article
LanguageEnglish
Published United States 01.10.2007
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Summary:In this paper we develop a rigorous formulation of Gauss- Laguerre beams in terms of Mie scattering coefficients which permits us to quasi-analytically treat the interaction of a spherical particle located in the focal region of a possibly high numerical aperture lens illuminated by a Gauss-Laguerre beam. This formalism is used to study the scattered field as a function of the radius of a spherical scatterer, as well as the translation of a spherical scatterer through the Gauss-Laguerre illumination in the focal plane. Knowledge of the Mie coefficients provides a deeper insight to understanding the scattering process and explaining the oscillatory behaviour of the scattered intensity distribution.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.15.013360