title: Low-threshold cavitation in water using IR laser pulse trains.
abstract: The low-temperature cavitational disruption by trains of laser pulses was demonstrated in water. The trains used in the experiment were generated by a Raman laser at a wavelength of 1626 nm. The mean value of the fragmentation threshold energy density per pulse in a train was estimated to be equal to 7.2x10(6) J/m(3). The corresponding amplitude of the negative pressure had the order of 6-7 bars at a temperature jump of only about 2 degrees C. This result opens up prospects for developing precision nonthermal cavitational laser surgery.
authors.affiliation: B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Nesalezhnasti Avenue 68, Minsk 220072, Belarus. zheltov@tut.by
authors.forename: G I
authors.initials: GI
authors.lastname: Zheltov
authors.forename: V A
authors.initials: VA
authors.lastname: Lisinetskii
authors.forename: A S
authors.initials: AS
authors.lastname: Grabtchikov
authors.forename: V A
authors.initials: VA
authors.lastname: Orlovich
mesh_terms: D004307:Dose-Response Relationship, Radiation; D005740:Gases / Q000737:chemistry* / Q000528:radiation effects*; D007259:Infrared Rays; D053685:Laser Therapy; D007834:Lasers; D045423:Microbubbles; D011312:Pressure; D011829:Radiation Dosage; D014867:Water / Q000737:chemistry*
chemical_list: D005740:Gases; D014867:Water