Circularly symmetric frozen waves: Vector approach for light scattering calculations

Autor(es)

Ambrosio, Leonardo Andre

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER; v. 204, p. 112-119, JAN 2018.
• Citações Web of Science: 6

Resumo

This work introduces particular classes of vector wave fields for light scattering calculations, viz. structured light fields composed of specific superpositions of circularly symmetric Bessel beams of arbitrary order. Also known as generalized frozen waves, such beams carry all the non-diffracting properties of their constituents with the additional feature of allowing for an arbitrary design of the longitudinal intensity pattern along the surface of several cylinders of fixed radius, simultaneously. This feature makes the generalized frozen waves especially suitable for optical confinement and manipulation and atom guiding and selection. In the framework of the generalized Lorenz-Mie theory, the beam shape coefficients which describe such beams are evaluated in exact and analytic form, the resulting expressions being then applied in light scattering problems. Particular frozen waves are considered beyond the paraxial approximation, optical forces being calculated for specific dielectric Rayleigh particles. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/11174-8 - Descrições eficientes de superposições discretas de feixes de Bessel escalares (Frozen Waves) na teoria generalizada de Lorenz-Mie para aplicações em aprisionamento óptico
• Beneficiário: Leonardo Andre Ambrosio
• Modalidade de apoio: Bolsas no Exterior - Pesquisa