An approach for a polychromatic generalized Lorenz-Mie theory

Autor(es)

Ambrosio, Leonardo A. ; de Sarro, Jhonas O. ; Gouesbet, Gerard

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER; v. 312, p. 11-pg., 2023-11-06.

Resumo

In this work a polychromatic version of the generalized Lorenz-Mie theory stricto sensu (GLMT) is derived. In this new formalism, arbitrary time-dependent fields are expanded into partial waves using Bromwich scalar potentials and, instead of the usual expansion coefficients - the beam shape coefficients (BSCs) - found in the monochromatic GLMT, now one finds field shape spectra (FSSs) which are intrinsically frequency-dependent. Expressions for the incident, scattered and internal fields are presented, and it is shown how physical quantities defined and expressed in the monochromatic GLMT in terms of the BSCs are modified and redefined in terms of the FSSs in polychromatic light scattering problems, like scattered intensities and phase angles, absorption, extinction and scattering cross-sections, and radiation pressure cross-sections. (AU)

• Processo FAPESP: 21/06121-0 - Propagação de ondas eletromagnéticas em estruturas complexas
• Beneficiário: Ben-Hur Viana Borges
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 20/05280-5 - Feixes estruturados tipo frozen waves: aspectos teóricos e experimentais em imagens 2D e 3D, pinças ópticas e armadilhas fotoforéticas para displays de aprisionamento óptico
• Beneficiário: Leonardo Andre Ambrosio
• Modalidade de apoio: Auxílio à Pesquisa - Regular