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Optics Letters

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  • Vol. 24, Iss. 17 — Sep. 1, 1999
  • pp: 1185–1187

Two-dimensional angular optical scattering patterns as droplets evolve into clusters

Stephen Holler, Mario Surbek, Richard K. Chang, and Yong-Le Pan  »View Author Affiliations


Optics Letters, Vol. 24, Issue 17, pp. 1185-1187 (1999)
http://dx.doi.org/10.1364/OL.24.001185


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Abstract

Remarkable changes in the two-dimensional angular optical scattering (TAOS) pattern are observed when an acoustically levitated water droplet with inclusions evolves into a dry aggregate. The emergence of polystyrene latex sphere inclusions near the droplet surface has a clear effect on the TAOS. A speckle pattern in the TAOS replaces the continuous contours associated with Mie scattering from a smooth droplet. Once the contours break up, this speckle pattern persists as the levitated droplet evaporates, making the transition from a droplet with inclusions to a dried aggregate. The initial emergence of the speckle pattern is observed for an inclusion volume fraction near 8%.

© 1999 Optical Society of America

OCIS Codes
(010.1110) Atmospheric and oceanic optics : Aerosols
(290.1310) Scattering : Atmospheric scattering
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles
(290.5880) Scattering : Scattering, rough surfaces

Citation
Stephen Holler, Mario Surbek, Richard K. Chang, and Yong-Le Pan, "Two-dimensional angular optical scattering patterns as droplets evolve into clusters," Opt. Lett. 24, 1185-1187 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-17-1185


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