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Journal Article

Splitting of high-Q Mie modes induced by light backscattering in silica microspheres

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Citation

Weiss, D., Sandoghdar, V., Hare, J., Lefèvre-Seguin, V., Raimond, J., & Haroche, S. (1995). Splitting of high-Q Mie modes induced by light backscattering in silica microspheres. Optics Letters, 20, 1835-1837. doi:10.1364/OL.20.001835.


Cite as: https://hdl.handle.net/21.11116/0000-0002-9BF6-A
Abstract
We have observed that very high-and Mie resonances in silica microspheres are split into doublets. This splitting is attributed to internal backscattering that couples the two degenerate whispering-gallery modes propagating in opposite directions along the sphere equator. We have studied this doublet structure by high-resolution spectroscopy. Time-decay measurements have also been performed and show a beat note corresponding to the coupling rate between the clockwise and counterclockwise modes. A simple model of coupled oscillators describes our data well, and the backscattering efficiency that we measure is consistent with what is observed in optical fibers. (C) 1995 Optical Society of America