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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A set of basis functions to improve numerical calculation of Mie scattering in the Chandrasekhar-Sekera representation

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Martinez, Alexandre Souto [1, 2] ; Alcaras, Jose Renato [1] ; Arruda, Tiago Jose [3, 4]
Total Authors: 3
[1] Univ Sao Paulo, FFCLRP, Ribeirao Preto - Brazil
[2] INCT SC, Rio De Janeiro - Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil
[4] Univ Fed Alfenas UNIFAL MG, Inst Ciencias Exatas ICEx, Alfenas - Brazil
Total Affiliations: 4
Document type: Journal article
Web of Science Citations: 0

Numerical calculations of light propagation in random media demand the multiply scattered Stokes intensities to be written in a common fixed reference. In multiple-scattering schemes, a particularly useful way to perform automatically these basis transformations between reference frames is to write the scattered intensities in the Chandrasekhar-Sekera representation. The main drawback with this representation is the necessity of numerical tests to deal with the limiting situations of the small particle (Rayleigh) and forward/backward scattering. Here, a new set of basis functions is presented to describe the scattering of light by spherical particles (Mie scattering) in the Chandrasekhar-Sekera representation. These basis functions can be implemented in a new algorithm to calculate the Mie scattering amplitudes, which leads straightforwardly to all the scattering quantities. In contrast to the traditional implementation, this set of basis functions implies to natural numerical convergence to the above mentioned limiting cases, which are thoroughly discussed. (AU)

FAPESP's process: 15/21194-3 - Interaction between atoms and metamaterials: Purcell effect and effective medium theories
Grantee:Tiago José Arruda
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/21694-4 - Acoustic metamaterials: internal fields and scattering theory
Grantee:José Renato Alcarás
Support type: Scholarships in Brazil - Doctorate