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Dynamics of Laser-Induced 3D Microbubbles in an Absorbing Liquid

Abstract Details

2019, Master of Science (M.S.), University of Dayton, Electro-Optics.
Optical trapping and manipulation of such microbubbles in a liquid can be used in precise drug delivery and other biological applications. In this work, the generation and subsequent dynamics of a microbubble in a liquid are investigated, both experimentally and theoretically. When a laser beam is focused into an absorbing liquid comprising colloidal red dye particles in isopropanol alcohol inside a thick quartz cuvette, microbubbles can be generated at around the focus due to nucleation and thermal cavitation. It is experimentally shown that in some cases, the generated microbubble initially moves away from the focus due to the longitudinal optical gradient force, and is later attracted towards the focus due to the longitudinal thermo-capillary force. The thermo-capillary force on the microbubble is determined by solving the heat equation using Fourier transform methods. When developing the complete force model in microbubble dynamics, the thermo-capillary force, optical force, buoyancy force, gravity, and the viscous force have been considered.
Partha Banerjee (Committee Chair)
Chenglong Zhao (Committee Member)
Imad Agha (Committee Member)
78 p.

Recommended Citations

Citations

  • Li, Y. (2019). Dynamics of Laser-Induced 3D Microbubbles in an Absorbing Liquid [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton156516377076545

    APA Style (7th edition)

  • Li, Yunyang. Dynamics of Laser-Induced 3D Microbubbles in an Absorbing Liquid. 2019. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton156516377076545.

    MLA Style (8th edition)

  • Li, Yunyang. "Dynamics of Laser-Induced 3D Microbubbles in an Absorbing Liquid." Master's thesis, University of Dayton, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton156516377076545

    Chicago Manual of Style (17th edition)