Numerical investigation of the resonance modes for the dielectric optical micro-spheres by using radial basis function method

Ertugay C., BOZTOSUN İ.

International Journal of Modern Physics C, cilt.33, sa.10, 2022 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 10
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1142/s0129183122501406
  • Dergi Adı: International Journal of Modern Physics C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Computer & Applied Sciences, INSPEC, zbMATH
  • Anahtar Kelimeler: dielectric microsphere, radial basis functions, Whispering gallery modes
  • Akdeniz Üniversitesi Adresli: Evet

Özet

© 2022 World Scientific Publishing Company.In this paper, we present a numerical meshless method, which is based on the radial basis functions (RBF), to solve the morphology-dependent resonance (MDR) modes of a dielectric micro-sphere. To check the accuracy of the considered RBF method, we calculated the transverse electric (TE) and transverse magnetic (TM) modes of a perfect sphere that has an analytical characteristic equation. Besides, we employed the traditional mesh-dependent finite difference (FD) method to study the same problem. When we compared the results obtained by the three methods, we observe that the RBF method's results are in very good agreement with the analytical and FD method's results. We conclude that the presented meshless method may also be applicable to prolate and oblate spheroidal geometries, which do not have an analytical equation to calculate the modes.