Author Affiliations

Yong Sing You,¹ Mengxi Wu,² Yanchun Yin,^3,4 Andrew Chew,^3,4 Xiaoming Ren,^3,4 Shima Gholam-Mirzaei,⁴ Dana A. Browne,² Michael Chini,⁴ Zenghu Chang,^3,4 Kenneth J. Schafer,² Mette B. Gaarde,² and Shambhu Ghimire¹

¹Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

²Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA

³Institute for the Frontier of Attosecond Science and Technology, CREOL, University of Central Florida, Orlando, Florida 32816, USA

⁴Department of Physics, University of Central Florida, Orlando FL 32816, USA