Periodic cavitation in an optical tweezer

Viridiana Carmona-Sosa; José E. Alba-Arroyo; Pedro A. Quinto-Su

doi:10.1117/12.2190361

25 August 2015 Periodic cavitation in an optical tweezer

Viridiana Carmona-Sosa, José E. Alba-Arroyo, Pedro A. Quinto-Su

Proceedings Volume 9548, Optical Trapping and Optical Micromanipulation XII; 95480Q (2015) https://doi.org/10.1117/12.2190361
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

Viridiana Carmona-Sosa, José E. Alba-Arroyo, and Pedro A. Quinto-Su "Periodic cavitation in an optical tweezer", Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 95480Q (25 August 2015); https://doi.org/10.1117/12.2190361

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