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

Cottet, F.; Hallouin, M.; Romain, J. P.; Fabbro, R.; Faral, B.; Pepin, H.
October 1985
Applied Physics Letters;10/1/1985, Vol. 47 Issue 7, p678
Academic Journal
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.


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