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Proceedings Paper

Single droplet formation and crystal growth in urea solution induced by laser trapping
Author(s): Ken-ichi Yuyama; Kei Ishiguro; Thitiporn Rungsimanon; Teruki Sugiyama; Hiroshi Masuhara
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Paper Abstract

A single dense liquid droplet of urea is formed by irradiating a focused continuous wave near-infrared laser beam to a glass/solution interface of a thin film of the unsaturated D2O solution though its dynamic deformation. Conversely, in the supersaturated solution, neither droplet formation nor large solution deformation is observed. This can be explained on the basis of its high viscosity. In addition, crystal growth and dissolution are demonstrated by focusing the laser beam close to the crystal generated in the solution. All results are here discussed in view of local temperature elevation, mass transfer due to convection, and laser trapping of the clusters due to photon pressure, by comparing with experimental results for glycine.

Paper Details

Date Published: 28 August 2010
PDF: 7 pages
Proc. SPIE 7762, Optical Trapping and Optical Micromanipulation VII, 776236 (28 August 2010); doi: 10.1117/12.860241
Show Author Affiliations
Ken-ichi Yuyama, Nara Institute of Science and Technology (Japan)
Kei Ishiguro, Nara Institute of Science and Technology (Japan)
Thitiporn Rungsimanon, Nara Institute of Science and Technology (Japan)
Teruki Sugiyama, Nara Institute of Science and Technology (Japan)
Hiroshi Masuhara, Nara Institute of Science and Technology (Japan)
National Chiao Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7762:
Optical Trapping and Optical Micromanipulation VII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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