Abstract
We present results of an experiment in which x rays from an optical-field ionized plasma are generated under well-controlled conditions in a low-pressure gas cell. In this way high-density effects such as electron heating, collisional ionization, and ionization defocusing are avoided. Using N2 as the medium, we show that many features of the soft-x-ray emission follow theoretical predictions. In particular, higher x-ray intensity is observed on most lines for circularly than for linearly polarized light. However, several Li-like lines show anomalously strong emission for linear polarization. Mechanisms that may be responsible for this effect are discussed.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
Stéphane Sebban, Lee M. Upcraft, Philippe Balcou, Moana Pittman, Romain Haroutunian, Georges Grillon, Constance Valentin, Antoine Rousse, Jean-Philippe Rousseau, Laurent Notebaert, Danièle Hulin, Tomas Mocek, Bedrich Rus, David Ros, Annie Klisnick, Antoine Carillon, and Gérard Jamelot
J. Opt. Soc. Am. B 20(1) 195-202 (2003)
K. M. Krushelnick, W. Tighe, and S. Suckewer
J. Opt. Soc. Am. B 13(2) 306-311 (1996)
Karol A. Janulewicz, Matthias Schnürer, Johannes Tümmler, Gerd Priebe, Enrico Risse, Peter V. Nickles, Boris Greenberg, Michael Levin, Anatoly Pukhov, Pinchas Mandelbaum, and Arie Zigler
Opt. Lett. 30(12) 1572-1574 (2005)