A. Ya. Faenov, T. A. Pikuz, I. Yu. Skobelev, A. I. Magunov, V. P. Efremov, M. Servol, F. Quéré, M. Bougeard, P. Monot, Ph. Martin, M. Francucci, G. Petrocelli, P. Audebert, “X-ray spectroscopic observations of a superdense plasma in nanoparticles irradiated by superintense femtosecond laser radiation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2004, Volume 80, Issue 12,Pages <nobr>860

This article is cited in 13 papers

PLASMA, GASES

X-ray spectroscopic observations of a superdense plasma in nanoparticles irradiated by superintense femtosecond laser radiation

A. Ya. Faenov^a, T. A. Pikuz^a, I. Yu. Skobelev^a, A. I. Magunov^a, V. P. Efremov^b, M. Servol^c, F. Quéré^c, M. Bougeard^c, P. Monot^c, Ph. Martin^c, M. Francucci^d, G. Petrocelli^d, P. Audebert^e

^a Federal State Unitary Enterprise (FSUE) "National Research Institute for Physicotechnical and Radio Engineering Measurements",
^b Institute of Extremal States Thermophysics, Scientific Association for High Temperatures, Russian Academy of Sciences, Moscow
^c DSM-DRECAM-Service des Photons, Atomes et Mol'ecules, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
^d Dipartimento di Scienze e Technologie Fisiche ed Energetiche, Universita di Roma "Tor Vergata", 00133 Rome, Italy
^e LULI (CNRS), Ecole polytechnique, 91 128 Palaiseau Cedex, France

Abstract: The interaction of femtosecond laser pulses with SiO$_2$ aerogel targets has been analyzed by x-ray spectroscopic methods. The use of an aerogel target with transparent grains makes it possible to considerably reduce the requirements on laser-pulse contrasts for which heating occurs without the formation of a preplasma. A nanoplasma with a density sevenfold higher than the solid-state density has been detected.

PACS: 52.50.Jm, 52.70.La

Received: 09.11.2004