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arXiv · 0710.2276

Optical coupling of fundamental whispering gallery modes in bi-spheres

L. I. Deych·C. Schmidt·A. Chipouline·T. Pertsch·A. Tünnermann
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Abstract

What will happen if two identical microspheres, with fundamental whispering gallery modes excited in each of them, become optically coupled? Conventional wisdom based on coupled-mode arguments says that two new modes, bonding and anti-bonding, with two split frequencies would be formed. In this paper we demonstrate, using exact multi-sphere Mie theory, that in reality an attempt to couple two fundamental modes of microspheres would result in a complex multi-resonance optical response with the field distribution significantly deviating from predictions of coupled-mode type theories.

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L. I. Deych, C. Schmidt, A. Chipouline, T. Pertsch, A. Tünnermann. 2007-10-11. Optical coupling of fundamental whispering gallery modes in bi-spheres. https://doi.org/10.1103/physreva.77.051801

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