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

Can Ertugay and Ismail Boztosun ()
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Can Ertugay: Department of Physics, Akdeniz University, 07058 Antalya, Turkey
Ismail Boztosun: Department of Physics, Akdeniz University, 07058 Antalya, Turkey

International Journal of Modern Physics C (IJMPC), 2022, vol. 33, issue 10, 1-10

Abstract: 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.

Keywords: Whispering gallery modes; dielectric microsphere; radial basis functions (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0129183122501406

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