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Proceedings Paper

Dynamics of femtosecond laser-induced breakdowns in water
Author(s): A. Takita; Y. Hayasaki
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Paper Abstract

Time-resolved phase distributions of laser-induced breakdowns generated by two pulses in water are observed with a pump-probe interference microscope. When the two pulses are overlapping temporally, the optical interference of the two pulses are resulted in fluctuation of pulse energy used to breakdown. When shock waves emitted from breakdowns are overlapped, the pressure of overlapping point is addition of the pressure of each shock wave. When two pulse is overlapping spatially, even temporally separated, a nonlinear enhancement of shock wave is observed. It may be caused by an interaction between a plasma and a post pulse.

Paper Details

Date Published: 24 February 2009
PDF: 8 pages
Proc. SPIE 7201, Laser Applications in Microelectronic and Optoelectronic Manufacturing VII, 72010J (24 February 2009); doi: 10.1117/12.808822
Show Author Affiliations
A. Takita, Utsunomiya Univ. (Japan)
Y. Hayasaki, Utsunomiya Univ. (Japan)

Published in SPIE Proceedings Vol. 7201:
Laser Applications in Microelectronic and Optoelectronic Manufacturing VII
Michel Meunier; Andrew S. Holmes; Hiroyuki Niino; Bo Gu, Editor(s)

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