Author Affiliations

Wei Xiong,^*,1 Daniel D. Hickstein,¹ Kyle J. Schnitzenbaumer,² Jennifer L. Ellis,¹ Brett B. Palm,³ Chengyuan Ding,¹ Molly B. Beernink,² Gordana Dukovic,² Jose L. Jimenez,³ Margaret M. Murnane,¹ and Henry C. Kapteyn¹

¹Department of Physics and JILA, University of Colorado and NIST, Boulder, CO 80309, USA

²Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA

³Department of Chemistry and Biochemistry and CIRES, University of Colorado, Boulder, CO 80309, USA

^*Corresponding author: Wei.Xiong@jila.colorado.edu