Efficient computation of arbitrary beam scattering on a sphere

Yuval Kashter, Eran Falek, Pavel Ginzburg

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Electromagnetic scattering on a sphere is one of the most fundamental problems, which has a closed form analytical solution in the form of Mie series. Being initially formulated for a plane incident wave, the formalism can be extended to more complex forms of incident illumination. Here we present a fast calculation approach to address the scattering problem in the case of arbitrary illumination, incident on a spherical scatterer. This method is based on the plane wave decomposition of the incident illumination and weighted integration of Mie solutions, rotated to a global coordinate system. Tabulated solutions, sampled with an accurately level of sparsity, and efficient rotational transformations allow performing fast calculations on electrically large structures, outperforming capabilities relatively to other numerical techniques. Our approach is appropriate for real-time analysis of electromagnetic scattering from electrically large objects, which is essential for monitoring and control applications, such as optomechanical manipulation, scanning microscopy, and fast optimization algorithms.

Original languageEnglish
Article number106887
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume253
DOIs
StatePublished - 1 Sep 2020

Keywords

  • Arbitrary incident waveform
  • Electromagnetic scattering
  • Error estimation
  • Mie scattering
  • Numerical scattering simulations
  • Rotation of Mie solution

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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