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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. 11, Iss. 4 — Apr. 1, 1994
  • pp: 1352–1359

Suppression of scattering resonances in inhomogeneous microdroplets

Dat Ngo and R. G. Pinnick  »View Author Affiliations


JOSA A, Vol. 11, Issue 4, pp. 1352-1359 (1994)
http://dx.doi.org/10.1364/JOSAA.11.001352


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Abstract

Resonance structure in elastic scattering was measured for evaporating micrometer-sized glycerol droplets suspended in an electrodynamic trap. Seeding the droplets with polystyrene latex particles having a diameter of 30 nm ≤ d ≤ 105 nm broadens and attenuates the highest Q (with bare Q ≈ 103−105) resonances, where Q is defined as the ratio of the energy stored to the energy lost from a cavity per cycle. Regardless of whether resonance conditions are satisfied, the presence of latex particles causes fluctuations in the scattering with an amplitude of up to ≈30% of the total signal. Model calculations suggest that the fluctuations may be due at least partially to agglomerated latex particles passing through hot-spot regions within the droplet.

© 1994 Optical Society of America

History
Original Manuscript: June 1, 1993
Revised Manuscript: October 12, 1993
Manuscript Accepted: October 12, 1993
Published: April 1, 1994

Citation
Dat Ngo and R. G. Pinnick, "Suppression of scattering resonances in inhomogeneous microdroplets," J. Opt. Soc. Am. A 11, 1352-1359 (1994)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-11-4-1352

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