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Proceedings Paper

Ablation by short optical and x-ray laser pulses
Author(s): N. A. Inogamov; S. I. Anisimov; V. V. Zhakhovsky; A. Ya. Faenov; Yu. V. Petrov; V. A. Khokhlov; V. E. Fortov; M. B. Agranat; S. I. Ashitkov; P. S. Komarov; I. Yu. Skobelev; Y. Kato; T. A. Pikuz; V. V. Shepelev; Y. Fukuda; M. Tanaka; M. Kishimoto; M. Ishino; M. Nishikino; M. Kando; T. Kawachi; M. Nagasono; H. Ohashi; M. Yabashi; K. Tono; Y. Senba; T. Togashi; T. Ishikawa
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Paper Abstract

The paper is devoted to experimental and theoretical studies of ablation of condensed matter by optical (OL), extreme ultraviolet (EUV) and X-ray lasers (XRL). Results obtained at two different XRL are compared. The first XRL is collision Ag-plasma laser with pulse duration τL = 7 ps and energy of quanta hv=89.3 eV, while the second one is EUV free electron laser (EUV-FEL) and has parameters τL = 0.3 ps and energy of quanta 20.2 eV. It is shown that ablation thresholds for these XRL at LiF dielectric are approximately the same. A theory is presented which explains slow growth of ablated mass with fluence in case of XRL as a result of transition from spallative ablation near threshold to evaporative ablation at high fluencies. It is found that the metal irradiated by short pulse of OL remains in elastic state even in high shear stresses. Material strength of aluminum at very high deformation rates V/V ~ 109 s-1 is defined.

Paper Details

Date Published: 28 February 2011
PDF: 15 pages
Proc. SPIE 7996, Fundamentals of Laser-Assisted Micro- and Nanotechnologies 2010, 79960T (28 February 2011); doi: 10.1117/12.887429
Show Author Affiliations
N. A. Inogamov, Landau Institute for Theoretical Physics (Russian Federation)
S. I. Anisimov, Landau Institute for Theoretical Physics (Russian Federation)
V. V. Zhakhovsky, Joint Institute for High Temperatures (Russian Federation)
Univ. of South Florida (United States)
A. Ya. Faenov, Joint Institute for High Temperatures (Russian Federation)
Japan Atomic Energy Agency (Japan)
Yu. V. Petrov, Landau Institute for Theoretical Physics (Russian Federation)
V. A. Khokhlov, Landau Institute for Theoretical Physics (Russian Federation)
V. E. Fortov, Joint Institute for High Temperatures (Russian Federation)
M. B. Agranat, Joint Institute for High Temperatures (Russian Federation)
S. I. Ashitkov, Joint Institute for High Temperatures (Russian Federation)
P. S. Komarov, Joint Institute for High Temperatures (Russian Federation)
I. Yu. Skobelev, Joint Institute for High Temperatures (Russian Federation)
Y. Kato, The Graduate School for the Creation of New Photonics Industries (Japan)
T. A. Pikuz, Joint Institute for High Temperatures (Russian Federation)
Japan Atomic Energy Agency (Japan)
V. V. Shepelev, Institute for Computer Aided Design (Russian Federation)
Y. Fukuda, Japan Atomic Energy Agency (Japan)
M. Tanaka, Japan Atomic Energy Agency (Japan)
M. Kishimoto, Japan Atomic Energy Agency (Japan)
M. Ishino, Japan Atomic Energy Agency (Japan)
M. Nishikino, Japan Atomic Energy Agency (Japan)
M. Kando, Japan Atomic Energy Agency (Japan)
T. Kawachi, Japan Atomic Energy Agency (Japan)
M. Nagasono, RIKEN (Japan)
H. Ohashi, RIKEN (Japan)
Japan Synchrotron Radiation Research Institute (Japan)
M. Yabashi, RIKEN (Japan)
Japan Synchrotron Radiation Research Institute (Japan)
K. Tono, RIKEN (Japan)
Y. Senba, Japan Synchrotron Radiation Research Institute (Japan)
T. Togashi, RIKEN (Japan)
Japan Synchrotron Radiation Research Institute (Japan)
T. Ishikawa, RIKEN (Japan)


Published in SPIE Proceedings Vol. 7996:
Fundamentals of Laser-Assisted Micro- and Nanotechnologies 2010
Vadim P. Veiko; Tigran A. Vartanyan, Editor(s)

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