Purcell factor of spherical Mie resonators

Xavier Zambrana-Puyalto and Nicolas Bonod
Phys. Rev. B 91, 195422 – Published 18 May 2015

Abstract

Using a modal approach, we compute the Purcell factor for spherical resonators. The analytic expressions of the normal modes of the resonator are used to calculate the effective volumes. Then we show that the effective volume associated with each normal mode is related to the translation-addition coefficients of a displaced dipole. Finally, we consider a silicon resonator homogeneously doped with electric dipolar emitters, and we show that the average electric Purcell factor dominates over the magnetic one.

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  • Received 29 January 2015
  • Revised 24 April 2015

DOI:https://doi.org/10.1103/PhysRevB.91.195422

©2015 American Physical Society

Authors & Affiliations

Xavier Zambrana-Puyalto* and Nicolas Bonod

  • Aix-Marseille Université, CNRS, Centrale Marseille, Institut Fresnel UMR 7249, 13013 Marseille, France

  • *xavislow@protonmail.ch
  • nicolas.bonod@fresnel.fr

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Issue

Vol. 91, Iss. 19 — 15 May 2015

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