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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. 7, Iss. 12 — Dec. 1, 1990
  • pp: 2159–2168

Spherical-cavity-mode assignments of optical resonances in microdroplets using elastic scattering

J. D. Eversole, H.-B. Lin, A. L. Huston, and A. J. Campillo  »View Author Affiliations


JOSA A, Vol. 7, Issue 12, pp. 2159-2168 (1990)
http://dx.doi.org/10.1364/JOSAA.7.002159


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Abstract

We describe a procedure for identifying morphology-dependent resonances observed in various optical processes in micrometer-sized droplets. This capability results from the use of a vibrating-orifice aerosol generator in which the radius a of a droplet stream is repeatedly ramped between fixed values, providing characteristic size spectra. When acquired in conjunction with other optical data (such as fluorescence, lasing, and Raman scattering), fixed-angle elastic scattering provides a fiducial spectrum from which mode positions are assigned and transferred. From Lorenz–Mie theory calculations, spectral spans of ≈0.1a are shown to be sufficient to yield unambiguous mode identification, given an initial experimental uncertainty of ±1.5° in the scattering angle and ±6% in the refractive index.

© 1990 Optical Society of America

History
Original Manuscript: February 20, 1990
Manuscript Accepted: July 6, 1990
Published: December 1, 1990

Citation
J. D. Eversole, H.-B. Lin, A. L. Huston, and A. J. Campillo, "Spherical-cavity-mode assignments of optical resonances in microdroplets using elastic scattering," J. Opt. Soc. Am. A 7, 2159-2168 (1990)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-7-12-2159

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