Author Affiliations

Wenting Wang,^*,1 Aram Kalaydzhyan,^1,2 Kemal Şafak,^1,2 Ming Xin,^1,3 Michael Y. Peng,³ Kwangyun Jung,⁴ Jungwon Kim,⁴ and Franz X. Kärtner^1,2,3

¹Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany

²Physics Department, University of Hamburg and the Hamburg Center for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany

³Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

⁴School of Mechanical and Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea

^*Corresponding author: wenting.wang@desy.de