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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 18 — Aug. 30, 2010
  • pp: 19209–19218

Separation-sensitive measurements of morphology dependent resonances in coupled fluorescent microspheres

David B. Thompson, David A. Keating, Emre Guler, Kazuya Ichimura, Mary E. Williams, and Kirk A. Fuller  »View Author Affiliations

Optics Express, Vol. 18, Issue 18, pp. 19209-19218 (2010)

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The inelastic emission spectrum of a single fluorescent microsphere (bead) exhibits resonances arising from whispering gallery modes. Two beads in close proximity form a coupled bisphere. Coherent coupling arises from each bead’s evanescent field and leads to resonance splitting. Here we collect emission spectra of two coupled beads, with nearly identical diameters, as spacing between beads is varied. Using these size-matched beads allows us to probe resonance splitting under strong coupling conditions.

© 2010 OSA

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(260.5740) Physical optics : Resonance
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(230.4555) Optical devices : Coupled resonators

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 16, 2010
Revised Manuscript: August 19, 2010
Manuscript Accepted: August 23, 2010
Published: August 25, 2010

Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics

David B. Thompson, David A. Keating, Emre Guler, Kazuya Ichimura, Mary E. Williams, and Kirk A. Fuller, "Separation-sensitive measurements of morphology dependent resonances in coupled fluorescent microspheres," Opt. Express 18, 19209-19218 (2010)

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