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Effect of target atomic number on laser induced ablation pressure scaling

Published online by Cambridge University Press:  09 March 2009

T. S. Shirsat ,
H. D. Parab  and
H. C. Pant
T. S. Shirsat
Affiliation:
Laser Division, Bhabha Atomic Research Centre, Bombay-400085 India
H. D. Parab
Affiliation:
Theoretical Physics Division, Bhabha Atomic Research Centre Bombay-400085 India
H. C. Pant
Affiliation:
Laser Division, Bhabha Atomic Research Centre, Bombay-400085 India
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Abstract

Laser induced ablation pressure as a function of absorbed laser intensity for low and moderate atomic number targets has been experimentally determined using a 1·06-μm laser at an irradiance of 5 × 1011 to 1 × 1013 W cm−2. Ablation pressure variations with the absorbed laser intensity indicate a transition from a self-regulating ablation to a deflagration scaling for low atomic targets. The experimental results have also been corroborated with theoretical models and a two dimensional hydrodynamic code.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 4 , November 1989 , pp. 795 - 805
Copyright
Copyright © Cambridge University Press 1989

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