Configurable Vibrational Coupling in Laser-Induced Microsecond Oscillations of Multi-Microbubble System
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866914938070499328 |
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| author | Zhang, Xuanwei Matsuo, Ryu Nishida, Jun Namura, Kyoko Suzuki, Motofumi |
| author_facet | Zhang, Xuanwei Matsuo, Ryu Nishida, Jun Namura, Kyoko Suzuki, Motofumi |
| contents | We study the coupled vibrational dynamics of sub-MHz self-oscillating bubbles at separations of 14 to 92 μm. Two vapor-rich microbubbles are generated via photothermal heating; their interactions are captured in real space and time via a high-speed camera. By controlling the distance between bubbles with micrometer precision, we induce in- and anti-phase hybridized vibrations, with mode frequencies varying from 0.5 to 0.8 MHz. The observed coupled modes are reproduced by the extended Rayleigh-Plesset equation that takes pressure interactions between the bubbles into account. Our findings facilitate the optimization of bubble array positioning for spatio-temporal microfluidic control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_03266 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Configurable Vibrational Coupling in Laser-Induced Microsecond Oscillations of Multi-Microbubble System Zhang, Xuanwei Matsuo, Ryu Nishida, Jun Namura, Kyoko Suzuki, Motofumi Fluid Dynamics Optics We study the coupled vibrational dynamics of sub-MHz self-oscillating bubbles at separations of 14 to 92 μm. Two vapor-rich microbubbles are generated via photothermal heating; their interactions are captured in real space and time via a high-speed camera. By controlling the distance between bubbles with micrometer precision, we induce in- and anti-phase hybridized vibrations, with mode frequencies varying from 0.5 to 0.8 MHz. The observed coupled modes are reproduced by the extended Rayleigh-Plesset equation that takes pressure interactions between the bubbles into account. Our findings facilitate the optimization of bubble array positioning for spatio-temporal microfluidic control. |
| title | Configurable Vibrational Coupling in Laser-Induced Microsecond Oscillations of Multi-Microbubble System |
| topic | Fluid Dynamics Optics |
| url | https://arxiv.org/abs/2409.03266 |