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Optics Letters

Optics Letters


  • Vol. 20, Iss. 18 — Sep. 15, 1995
  • pp: 1835–1837

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

D. S. Weiss, V. Sandoghdar, J. Hare, V. Lefèvre-Seguin, J.-M. Raimond, and S. Haroche  »View Author Affiliations

Optics Letters, Vol. 20, Issue 18, pp. 1835-1837 (1995)

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We have observed that very high-Q 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.

© 1995 Optical Society of America

Original Manuscript: May 3, 1995
Published: September 15, 1995

D. S. Weiss, V. Sandoghdar, J. Hare, V. Lefèvre-Seguin, J.-M. Raimond, and S. Haroche, "Splitting of high-Q Mie modes induced by light backscattering in silica microspheres," Opt. Lett. 20, 1835-1837 (1995)

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