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Proceedings Paper

Periodic cavitation in an optical tweezer
Author(s): Viridiana Carmona-Sosa; José E. Alba-Arroyo; Pedro A. Quinto-Su
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Paper Abstract

We show that microscopic explosions (cavitation bubbles) can be generated periodically in an optical tweezer. An absorbing microparticle is attracted to the trapping beam waist where it eventually superheats a small volume of liquid resulting in a cavitation bubble that impulsively pushes the particle close to the starting position where the cycle restarts. The bubbles expand and collapse in a timescale on the order of one microsecond and are detected with a high speed video recorder and a fast photodiode. We also present preliminary results on the interaction between two microparticles generating cavitation bubbles in the same optical trap.

Paper Details

Date Published: 25 August 2015
PDF: 5 pages
Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 95480Q (25 August 2015); doi: 10.1117/12.2190361
Show Author Affiliations
Viridiana Carmona-Sosa, Univ. Nacional Autónoma de México (Mexico)
José E. Alba-Arroyo, Univ. Nacional Autónoma de México (Mexico)
Pedro A. Quinto-Su, Univ. Nacional Autónoma de México (Mexico)

Published in SPIE Proceedings Vol. 9548:
Optical Trapping and Optical Micromanipulation XII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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