Simulations of shock waves and cavitation bubbles produced in water by picosecond and nanosecond laser pulses

Conference · Tue Dec 01 00:00:00 EST 1998

OSTI ID:296764

Scammon, R J; Chapyak, E J; Godwin, R P ^[1]; Vogel, A ^[2]

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1. Los Alamos National Lab., NM (United States)
2. Medizinisches Laserzentrum Lueebeck GmbH (Germany)

The authors compare numerical simulations of bubble dynamics in water with experiments performed at the Medizinisches Laserzentrum Luebeck. Spatial and temporal features of the laser beam were modeled. Plasma growth was predicted using a moving breakdown model. The authors compare the measured and calculated positions of the shock front and the bubble wall as a function of time after optical breakdown in water. Nd:YAG laser pulses of 30-ps 1-mJ and 6-ns 10-mJ were simulated. The authors have extended previous work in which picosecond deposition was modeled as temporally instantaneous and spatially uniform.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 296764
• Report Number(s): LA-UR-98-126; CONF-980117-; ON: DE99000622; TRN: AHC29903%%162
• Resource Relation: Conference: BIOS `98: an international symposium on biomedical optics, San Jose, CA (United States), 24-30 Jan 1998; Other Information: PBD: [1998]
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
MEDICINE
SHOCK WAVES
CAVITATION
BUBBLES
LASER RADIATION
TWO-PHASE FLOW
COMPARATIVE EVALUATIONS
NEODYMIUM LASERS