Author Affiliations

Andrew J. Howard,^1,3 Mathew Britton,^2,3 Joshua Reynolds,¹ Ian Gabalski,^1,3 Ruaridh Forbes,³ Chuan Cheng,⁴ Thomas Weinacht,⁴ and Philip H. Bucksbaum^1,2,3,*

¹Department of Applied Physics, Stanford University, Stanford, California 94305, USA

²Department of Physics, Stanford University, Stanford, California 94305, USA

³Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

⁴Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA

^*Corresponding author: phbuck@stanford.edu