Explosion dynamics of dusty plasma liquids induced by laser ablation on suspended dust particles

Hong Yu Chu, Chen Ting Liao, I. Lin

Research output: Contribution to journalArticlepeer-review

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Abstract

Dusty plasma liquids can be formed by suspending negatively charged micrometer sized dust particles in a low pressure glow discharge. We investigate the dynamical behaviors of the expanding plume generated by the ablation on one of the suspended particles using a focused nanosecond pulsed laser, through monitoring the white light emission intensity and dust particle trajectories. In the initial 10 μs, the diameter of the expanding plume scales as D∝P-0.37t0.31, where P is the background pressure. The surrounding dust particles start to be driven away radially after tens of microseconds. The diameter of the expanding cavity (plasma bubble) with dust depletion scales as

Original languageEnglish
Article number101503
JournalApplied Physics Letters
Volume89
Issue number10
DOIs
StatePublished - 2006

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