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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 4 — Apr. 1, 2000
  • pp: 802–813

Microsphere resonators strongly coupled to a plane dielectric substrate: coupling via the optical near field

H. Ishikawa, H. Tamaru, and K. Miyano  »View Author Affiliations


JOSA A, Vol. 17, Issue 4, pp. 802-813 (2000)
http://dx.doi.org/10.1364/JOSAA.17.000802


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Abstract

A model is proposed that describes the essential optical process in the recently observed resonant light scattering from a microsphere resonator that is strongly coupled to the substrate. The experimentally observed field patterns across the resonance can be reproduced quite well by a numerical calculation taking into account only a few vector spherical waves that are converted from nonpropagating to propagating waves at the substrate surface. Explicit consideration of the multiple-reflection effect is not necessary to reproduce the experimental results. Comparison of the experiment and the calculation suggests the splitting of degenerate resonance modes that have different azimuthal mode numbers within a single broad resonance line. These results are discussed on the basis of the strongly coupled nature of the system.

© 2000 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(230.5750) Optical devices : Resonators
(260.6970) Physical optics : Total internal reflection
(290.3700) Scattering : Linewidth
(350.3950) Other areas of optics : Micro-optics

History
Original Manuscript: May 25, 1999
Revised Manuscript: October 5, 1999
Manuscript Accepted: November 16, 1999
Published: April 1, 2000

Citation
H. Ishikawa, H. Tamaru, and K. Miyano, "Microsphere resonators strongly coupled to a plane dielectric substrate: coupling via the optical near field," J. Opt. Soc. Am. A 17, 802-813 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-4-802

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