Enhancement of a laser-driven shock wave up to 10 TPa by the impedance-match technique

We have used the impedance-match technique to increase the shock pressure induced in an aluminum-gold target by a laser of 0.26 μm wavelength and intensity of 1015 W/cm2. With incident pressures of 4.5 TPa in aluminum, transmitted pressures of 10+4−3.5 TPa in gold are inferred from shock velocity me...

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Bibliographic Details
Published in:Applied physics letters 1985-01, Vol.47 (7), p.678-680
Main Authors: COTTET, F, HALLOUIN, M, ROMAIN, J. P, FABBRO, R, FARAL, B, PEPIN, H
Format: Article
Language:English
Subjects:
Analysing. Testing. Standards
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
High-pressure and shock-wave effects in solids and liquids
Materials science
Measurement of properties and materials state
Mechanical and acoustical properties of condensed matter
Metals, semimetals and alloys
Metals. Metallurgy
Nondestructive testing
Other techniques and industries
Physics
Specific materials
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Summary:We have used the impedance-match technique to increase the shock pressure induced in an aluminum-gold target by a laser of 0.26 μm wavelength and intensity of 1015 W/cm2. With incident pressures of 4.5 TPa in aluminum, transmitted pressures of 10+4−3.5 TPa in gold are inferred from shock velocity measurements. Experiments on gold-aluminum targets, with the same irradiation conditions, verify the shock pressure decrease due to the reverse impedance-match effect.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.96055