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Title: Focusing the beam of a compact, repetitively pulsed x-ray laser to study the interaction of radiation with metallic targets and x-ray reflectometry

Abstract

The interaction of focused soft x-ray laser radiation with metallic targets was studied experimentally. The radiation of a capillary-discharge Ne-like Ar ion laser ({lambda}=46.9 nm) with a repetition rate of 1 Hz was focused on the surface of metallic samples by using a spherical Si/Sc multilayer mirror. The radiation intensity at the target surface was far greater than the threshold for laser ablation of the materials in use - aluminium, brass, and stainless steel. A study of the shape of laser craters in relation to the position of the caustic of the focusing mirror, combined with computer ray-tracing simulations, made it possible to determine the radiation intensity distribution in the focal region of the mirror. The radiation energy density in the 2 {mu}m central domain of the focal spot was 10{sup 2} J cm{sup -2}, and the corresponding intensity was 10{sup 11} W cm{sup -2}. The reflectivity of a Si/Sc multilayer mirror was measured as a function of the angle of incidence of the radiation. (interaction of laser radiation with matter. laser plasma)

Authors:
;  [1]; ; ; ; ;  [2];  [3];  [4]
  1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  2. Colorado State University, Fort Collins (United States)
  3. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  4. Khar'kov Polytechnic Institute (Ukraine)
Publication Date:
OSTI Identifier:
21454670
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 30; Journal Issue: 4; Other Information: DOI: 10.1070/QE2000v030n04ABEH001707; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABLATION; ALUMINIUM; ARGON IONS; BRASS; ENERGY DENSITY; FOCUSING; INCIDENCE ANGLE; LASER MIRRORS; LASER RADIATION; LAYERS; PHOTON BEAMS; REFLECTION; REFLECTIVITY; SOFT X RADIATION; STAINLESS STEELS; X-RAY LASERS; ALLOYS; BEAMS; CARBON ADDITIONS; CHARGED PARTICLES; COPPER ALLOYS; COPPER BASE ALLOYS; ELECTROMAGNETIC RADIATION; ELEMENTS; HIGH ALLOY STEELS; IONIZING RADIATIONS; IONS; IRON ALLOYS; IRON BASE ALLOYS; LASERS; METALS; MIRRORS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; STEELS; SURFACE PROPERTIES; TRANSITION ELEMENT ALLOYS; X RADIATION; ZINC ALLOYS

Citation Formats

Artyukov, I A, Vinogradov, Aleksandr V, Benware, B R, Macchietto, C D, Ozols, A, Rocca, J J, Chilla, J L-A, Kas'yanov, Yu S, and Kondratenko, V V. Focusing the beam of a compact, repetitively pulsed x-ray laser to study the interaction of radiation with metallic targets and x-ray reflectometry. United States: N. p., 2000. Web. doi:10.1070/QE2000V030N04ABEH001707.
Artyukov, I A, Vinogradov, Aleksandr V, Benware, B R, Macchietto, C D, Ozols, A, Rocca, J J, Chilla, J L-A, Kas'yanov, Yu S, & Kondratenko, V V. Focusing the beam of a compact, repetitively pulsed x-ray laser to study the interaction of radiation with metallic targets and x-ray reflectometry. United States. doi:10.1070/QE2000V030N04ABEH001707.
Artyukov, I A, Vinogradov, Aleksandr V, Benware, B R, Macchietto, C D, Ozols, A, Rocca, J J, Chilla, J L-A, Kas'yanov, Yu S, and Kondratenko, V V. Sun . "Focusing the beam of a compact, repetitively pulsed x-ray laser to study the interaction of radiation with metallic targets and x-ray reflectometry". United States. doi:10.1070/QE2000V030N04ABEH001707.
@article{osti_21454670,
title = {Focusing the beam of a compact, repetitively pulsed x-ray laser to study the interaction of radiation with metallic targets and x-ray reflectometry},
author = {Artyukov, I A and Vinogradov, Aleksandr V and Benware, B R and Macchietto, C D and Ozols, A and Rocca, J J and Chilla, J L-A and Kas'yanov, Yu S and Kondratenko, V V},
abstractNote = {The interaction of focused soft x-ray laser radiation with metallic targets was studied experimentally. The radiation of a capillary-discharge Ne-like Ar ion laser ({lambda}=46.9 nm) with a repetition rate of 1 Hz was focused on the surface of metallic samples by using a spherical Si/Sc multilayer mirror. The radiation intensity at the target surface was far greater than the threshold for laser ablation of the materials in use - aluminium, brass, and stainless steel. A study of the shape of laser craters in relation to the position of the caustic of the focusing mirror, combined with computer ray-tracing simulations, made it possible to determine the radiation intensity distribution in the focal region of the mirror. The radiation energy density in the 2 {mu}m central domain of the focal spot was 10{sup 2} J cm{sup -2}, and the corresponding intensity was 10{sup 11} W cm{sup -2}. The reflectivity of a Si/Sc multilayer mirror was measured as a function of the angle of incidence of the radiation. (interaction of laser radiation with matter. laser plasma)},
doi = {10.1070/QE2000V030N04ABEH001707},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 4,
volume = 30,
place = {United States},
year = {2000},
month = {4}
}