title: Use of multilayer targets for achieving off-Hugoniot states.
abstract: We present an approach for the realization of extreme off-Hugoniot states of matter in laser-driven shock experiments. The method is based on the application of impedance-mismatch effect in sandwich targets. In order to verify this model we have realized numerical simulations using the two-dimensional hydrocode multi in three-layer targets (gold-aluminum-gold) with laser intensities ∼ 10(14) W/cm(2) and obtained pressures ∼ 10 Mbar. Results show the possibility of obtaining high pressures with relatively small temperatures for a low-impedance material sandwiched between layers with high density material.
authors.affiliation: Institute for Geothermal Researches DSC of Russian Academy of Sciences, Pr. Shamilya 30A, 367030 Makhachkala, Russia.
authors.forename: Abutrab A
authors.initials: AA
authors.lastname: Aliverdiev
authors.affiliation: University Bordeaux, CEA, CNRS, CELIA (Centre Laser Intense at Applications), UMR 5107, F-33405 Talence, France.
authors.forename: Dimitri
authors.initials: D
authors.lastname: Batani
authors.affiliation: University Bordeaux, CEA, CNRS, CELIA (Centre Laser Intense at Applications), UMR 5107, F-33405 Talence, France.
authors.forename: Luca
authors.initials: L
authors.lastname: Antonelli
authors.affiliation: University Bordeaux, CEA, CNRS, CELIA (Centre Laser Intense at Applications), UMR 5107, F-33405 Talence, France and IPPLM (Institute of Plasma Physics and Laser Microfusion), Hery Street 23, 01-497 Warsaw, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Jakubowska
authors.affiliation: Dipartimento di Fisica "G. Occhialini", Università di Milano-Bicocca, Milano, Italy.
authors.forename: Riccardo
authors.initials: R
authors.lastname: Dezulian
authors.affiliation: Institute of Physics DSC of Russian Academy of Sciences, Makhachkala, Russia.
authors.forename: Anise A
authors.initials: AA
authors.lastname: Amirova
authors.affiliation: Institute of Physics DSC of Russian Academy of Sciences, Makhachkala, Russia.
authors.forename: Gaji M
authors.initials: GM
authors.lastname: Gajiev
authors.affiliation: Department of Instrumentation Science, Jadavpur University, Kolkata, India.
authors.forename: Manoranjan
authors.initials: M
authors.lastname: Khan
authors.affiliation: Department of Instrumentation Science, Jadavpur University, Kolkata, India.
authors.forename: Hem C
authors.initials: HC
authors.lastname: Pant