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High-density assembly of micro-dispersoids by laser-induced bubble and fluid flow
Author(s): Yasuyuki Yamamoto; Shiho Tokonami; Takuya Iida
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Paper Abstract

A laser-induced micro-bubble and fluid flow can assemble dispersoids locally and rapidly by CW laser illumination to light absorptive materials in a suspension. However, the control method of such a process hasn’t been well established. In this study, we tried to construct a quantitative analysis method based on the projection area of the assembled dispersoids and to clarify the factors for the control of the laser-induced assembly. As a result, it was clarified that adsorption of the amphiphile onto gas-liquid interface of the bubble/suspension plays an important role for the controllability. Particularly, we found that there is a high correlation between the projection area of the assembled dispersoids and its concentration under the controlled assembly. These findings are crucial not only for the control of the laser-induced assembly but also for the rapid concentration measurement techniques.

Paper Details

Date Published: 24 April 2018
PDF: 3 pages
Proc. SPIE 10712, Optical Manipulation Conference, 107120X (24 April 2018); doi: 10.1117/12.2319385
Show Author Affiliations
Yasuyuki Yamamoto, Osaka Prefecture Univ. (Japan)
Shiho Tokonami, Osaka Prefecture Univ. (Japan)
Takuya Iida, Osaka Prefecture Univ. (Japan)


Published in SPIE Proceedings Vol. 10712:
Optical Manipulation Conference
Takashige Omatsu; Hajime Ishihara; Keiji Sasaki, Editor(s)

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