Observation of laser-pulse-induced traveling microbubbles in dusty plasma liquids.
We report a direct experimental observation of traveling microbubbles induced by intense laser pulses in strongly coupled dusty plasma liquids. The dense plasma ablated from a suspended dust particle generates a spherical plasma bubble with a low dust density, in the quiescent regime before a transition to self-organized longitudinal dust density waves. It travels downwards at a velocity about 6 cm/sec inside the dust liquid. Dust density fluctuations trailing the bubble are also observed. The bubble generated in the high pressure dissipative regime collapses right after formation.
Chu
Hong-Yu
HY
Department of Physics and Center for Complex Systems, National Central University, Chungli 32054, Taiwan, Republic of China.
Chiu
Yen-Kun
YK
Chan
Chia-Ling
CL
I
Lin
L