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Discharge phenomena in a cavitation bubble induced by liquid-phase laser ablation
| Title: | Discharge phenomena in a cavitation bubble induced by liquid-phase laser ablation |
| Authors: | Sasaki, Koichi Browse this author →KAKEN DB | | Takahashi, Yuta Browse this author |
| Keywords: | discharges in bubbles | | bubble deformation | | conductive bubble | | liquid-phase laser ablation |
| Issue Date: | 16-Aug-2017 |
| Publisher: | IOP Publishing |
| Journal Title: | Journal of Physics D : Applied Physics |
| Volume: | 50 |
| Issue: | 32 |
| Start Page: | 325202 |
| Publisher DOI: | 10.1088/1361-6463/aa754a |
| Abstract: | We observed the discharge phenomena in a cavitation bubble induced by liquid-phase laser ablation. A remarkable result was the deformation of the cavitation bubble. The formation of a swelling was observed from the cavitation bubble when the gas-liquid boundary reached a close distance from a needle electrode. The growth direction of the swelling was perpendicular to the gas-liquid boundary. The discharge toward the center of the target occurred when the swelling connected the electrode and the cavitation bubble. These experimental results suggest that the electric field is perpendicular to the gas-liquid boundary of the cavitation bubble. In other words, the cavitation bubble induced by liquid-phase laser ablation is conductive and it has free charges. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/71311 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐々木 浩一
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