Open AccessMultipolar analysis of the second harmonic generated by dielectric particles
Author(s) -
Miguel A.G. Mandujano,
Eugenio Rafael Mendez Mendez,
Claudio I. Valencia,
Bernardo S. Mendoza
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.003337
Subject(s) - excited state , harmonic , dielectric , optics , second harmonic generation , high harmonic generation , physics , refractive index , harmonic analysis , field (mathematics) , computational physics , atomic physics , materials science , quantum mechanics , laser , mathematical analysis , mathematics , pure mathematics
We studied the second harmonic generation (SHG) by two-dimensional dielectric particles made of a centrosymmetric high-index material. The calculated scattered fields at the fundamental and harmonic frequencies are decomposed on a multipolar basis, allowing the evaluation of the relative strengths of the multipolar resonances excited at the particle. With these tools, we studied the strength of the multipoles that produce the second harmonic field and the role played by those excited at the fundamental frequency.