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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 33 — Nov. 20, 1997
  • pp: 8729–8737

Collection of emission from an oscillating dipole inside a sphere: analytical integration over a circular aperture

J. David Pendleton and Steven C. Hill  »View Author Affiliations


Applied Optics, Vol. 36, Issue 33, pp. 8729-8737 (1997)
http://dx.doi.org/10.1364/AO.36.008729


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Abstract

We describe a method for integrating analytically, over a circular aperture, the emission from an oscillating dipole inside a dielectric sphere. The model is useful for investigating fluorescence, Raman, or other emission from molecules inside of spherical particles or droplets. The analysis is performed for two cases: (a) the dipole emits from a fixed orientation, and (b) the dipole emits from all orientations and the collected energy is summed. This second case models the collection of emission from a molecule that is excited repeatedly; after each excitation it rotates to a random orientation before emitting. These results are applicable to single-molecule detection techniques employing microdroplets and to other techniques for characterizing microparticles with luminescence or inelastic scattering.

© 1997 Optical Society of America

Citation
J. David Pendleton and Steven C. Hill, "Collection of emission from an oscillating dipole inside a sphere: analytical integration over a circular aperture," Appl. Opt. 36, 8729-8737 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-33-8729

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