Discharge phenomena in a cavitation bubble induced by liquid-phase laser ablation

• Sasaki, Koichi

• Takahashi, Yuta

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.

Journal

• Journal of Physics D : Applied Physics

  Journal of Physics D : Applied Physics 50 (32), 325202-, 2017-08-16

  IOP Publishing

Keywords

• discharges in bubbles
• bubble deformation
• conductive bubble
• liquid-phase laser ablation

Details

• CRID: 1050282814000796032
• NII Article ID: 120006498165
• HANDLE: 2115/71311
• ISSN: 00223727
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles