Explosion dynamics of dusty plasma liquids induced by laser ablation on suspended dust particles
- Department of Physics, National Central University, Chungli, Taiwan 32054 (China) and Center for Complex Systems, National Central University, Chungli, Taiwan 32054 (China)
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 {mu}s, the diameter of the expanding plume scales as D{proportional_to}P{sup -0.37}t{sup 0.31}, 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 D{proportional_to}t{sup 0.33}.
- OSTI ID:
- 20883210
- Journal Information:
- Applied Physics Letters, Vol. 89, Issue 10; Other Information: DOI: 10.1063/1.2348778; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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