Author Affiliations

J. P. Farrell,^1,3 B. K. McFarland,^1,2 N. Berrah,⁴ C. Bostedt,⁵ J. Bozek,⁵ P. H. Bucksbaum,^1,2,3 R. Coffee,⁵ J. Cryan,^1,2,3 L. Fang,⁴ R. Feifel,⁶ K. Gaffney,^1,2 J. Glownia,^1,2,3 T. Martinez,^1,2,7 M. Mucke,⁶ B. Murphy,⁴ S. Miyabe,^1,7 A. Natan,^1,2 T. Osipov,⁴ V. Petrovic,^1,3 S. Schorb,⁵ Th. Schultz,⁸ L. Spector,^1,3 F. Tarantelli,⁹ I. Tenney,^1,3 S. Wang,^1,3 W. White,⁵ J. White,^1,3 and M. Guehr^1,2

¹PULSE Institute, Stanford University, Stanford CA 94305

²Photon Science, SLAC National Accelerator Laboratory, Menlo Park, CA 94025

³Departments of Physics and Applied Physics, Stanford University, Stanford, CA 94305

⁴Physics Department, Western Michigan University, Kalamazoo, MI 49008

⁵LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025

⁶Department of Physics, Uppsala University, Uppsala, Sweden

⁷Department of Chemistry, Stanford University, Stanford, CA 94305

⁸Max-Born-Institut, 12489 Berlin, Germany

⁹Dipartimento di Chimica, Universita di Perugia, and ISTM-CNR, 06123 Perugia, Italy

For codes, see www.opticsinfobase.org/submit/ocis.