Dynamics of laser-induced transients produced by nanosecond duration pulses

Conference · Wed May 01 04:00:00 EDT 1996

OSTI ID:251165

Celliers, P; Da Silva, L B; Heredia, N J; Mammini, B M; London, R A ^[1]

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1. and others

We have implemented an interferometric method to probe the dynamics of transients induced in absorbing water solutions with nanosecond laser pulses delivered through an optical fiber. We examined two cases corresponding to strong absorption (deposition within 30 {mu}m of the fiber tip) and moderate absorption (deposition within 500 {mu}m of the fiber tip). With strong absorption the deposited energy leads to a strong stress transient followed by development of a thermally-generated vapor bubble. Moderate absorption leads to a moderate stress transient and formation of a cavitation bubble cloud arising from tensile stresses that are produced in the absorbing fluid.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 251165
• Report Number(s): UCRL-JC--124047; CONF-960163--31; ON: DE96012219
• Country of Publication: United States
• Language: English

Related Subjects

56 BIOLOGY AND MEDICINE
APPLIED STUDIES
66 PHYSICS
ABSORPTION
ANIMAL TISSUES
BUBBLES
CAVITATION
INTERFEROMETRY
LASER RADIATION
OPTICAL FIBERS
PHYSICAL RADIATION EFFECTS
PULSE TECHNIQUES
STRESSES