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Shock pressure induced by 0.44 μm laser radiation on aluminum targets

Published online by Cambridge University Press:  25 March 2004

D. BATANI ,
H. STABILE ,
A. RAVASIO ,
T. DESAI ,
G. LUCCHINI ,
F. STRATI ,
J. ULLSCHMIED ,
E. KROUSKY ,
J. SKALA  and
B. KRALIKOVA
...Show all authors
D. BATANI
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
H. STABILE
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
A. RAVASIO
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
T. DESAI
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
G. LUCCHINI
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
F. STRATI
Affiliation:
Dipartimento di Fisica “G. Occhialini,” Università degli Studi di Milano Bicocca and INFM, Milano, Italy
J. ULLSCHMIED
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
E. KROUSKY
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
J. SKALA
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
B. KRALIKOVA
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
M. PFEIFER
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
C. KADLEC
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
T. MOCEK
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
A. PRÄG
Affiliation:
Prague Asterix Laser Research Centre, Prague, Czech Republic
H. NISHIMURA
Affiliation:
Institute of Laser Engineering (ILE), Osaka University, Osaka, Japan
Y. OCHI
Affiliation:
Institute of Laser Engineering (ILE), Osaka University, Osaka, Japan
A. KILPIO
Affiliation:
General Physics Institute, Russian Academy of Sciences, Moscow, Russia
E. SHASHKOV
Affiliation:
General Physics Institute, Russian Academy of Sciences, Moscow, Russia
I. STUCHEBRUKHOV
Affiliation:
General Physics Institute, Russian Academy of Sciences, Moscow, Russia
V. VOVCHENKO
Affiliation:
General Physics Institute, Russian Academy of Sciences, Moscow, Russia
I. KRASUYK
Affiliation:
General Physics Institute, Russian Academy of Sciences, Moscow, Russia
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Abstract

Shock pressure generated in aluminum targets due to the interaction of 0.44 μm (3 ω of iodine laser) laser radiation has been studied. The laser intensity profile was smoothed using phase zone plates. Aluminum step targets were irradiated at an intensity I ≈ 1014 W/cm2. Shock velocity in the aluminum target was estimated by detecting the shock luminosity from the target rear using a streak camera to infer the shock pressure. Experimental results show a good agreement with the theoretical model based on the delocalized laser absorption approximation. In the present report, we explicitly discuss the importance of target thickness on the shock pressure scaling.

Keywords

Rear target luminosityShock pressureShort laser wavelength interactionStreak images
Type
Research Article
Information
Laser and Particle Beams , Volume 21 , Issue 4 , October 2003 , pp. 481 - 487
Copyright
© 2003 Cambridge University Press

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