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  • 1
    Electronic Resource
    Electronic Resource
    Imaging and analysis of photomechanical effects induced in water by high-power laser-target interaction (1996)
    Springer
    Applied physics 62 (1996), S. 503-510 
    Details
    ISSN: 1432-0649
    Keywords: 42.80 ; 81.60 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The kinetics of cavitation and associated photo-mechanical effects induced by underwater pulsed-laser irradiation of solid targets has been studied experimentally and analyzed with theoretical methods. A xenon-chloride excimer laser of 150 ns pulse duration has been utilized to produce ablation and local photofragmentation of artificial samples of hard tissues at fluences of 12–24 J/cm2. The evolution of pressure wave and cavitation formations developing in the liquid from the target surface after laser irradiation has been observed with a time-resolved imaging technique employing a pump-probe laser arrangement. The analysis of experimental results has been performed by using the theoretical model of “point explosion” that has been successfully applied to fit the cavitation kinetics, providing also quantitative information on the energy transfer during photo-acoustic interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01081051
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Auto-prepulse operation of a long-pulse XeCl laser (1992)
    Springer
    Applied physics 54 (1992), S. 259-264 
    Details
    ISSN: 1432-0649
    Keywords: 42.55.Gp ; 42.60.By
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A standard corona preionized XeCl laser prototype has been excited by a very simple L-C circuit consisting of a large storage capacitance charged at relatively low voltage (12 kV) and discharged via a switch on the electrodes, tightly coupled with the peaking capacitors. The resulting overvoltage following the switch closure behaves as an effective and automatic prepulse, providing a homogeneous discharge lasting up to 400 ns. Energy output levels of the order of 150 mJ at 1.4% overall efficiency have been achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325190
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Efficient low-voltage operation of a reverse-biased autoprepulse XeCl laser (1995)
    Springer
    Applied physics 60 (1995), S. 529-533 
    Details
    ISSN: 1432-0649
    Keywords: 42.55.Gp ; 42.60.By
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An improved version of the auto-prepulse excitation scheme for long-pulse operation of the XeCl excimer laser is reported. A pulsed reverse bias on the small peaking capacitance allows efficient (1.7%) operation at 100 mJ output level with a charge voltage limited to 5–7 kV. Analogies and differences with other long-pulse operation schemes are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01080931
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    Paper (German National Licenses)
    Fulltext
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