Author Affiliations

K. Sokolowski Tinten,^#,* M. Horn von Hoegen,^# D. von der Linde,^# A. Cavalleri,¹ C. W. Siders,¹ F. L. H. Brown,¹ C. Toth,² J. A. Squier,³ C. P. J. Barty,⁴ K. R. Wilson,¹ and M. Kammler^{^}

^#Institute for Laser-and Plasmaphysics, University of Essen, 45117 Essen, Germany

¹Department of Chemistry and Biochemistry, The University of California San Diego, La Jolla, CA 92093-0339, USA

²Institute for Nonlinear Science, The University of California San Diego, La Jolla, CA 92093-0339, USA

³Department of Electrical Engineering, The University of California San Diego, La Jolla, CA 92093-0339, USA

⁴Department of Applied Mechanics and Engineering Sciences, The University of California San Diego, La Jolla, CA 92093-0339, USA

^{^}Insitute for Solid State Physics, University of Hannover, 30167 Hannover, Germany

^*Corresponding author: kst@ilp.physik.uni-essen.de