Author Affiliations

Can Cihan,^1,* Ersen Beyatli,¹ Ferda Canbaz,¹ Li-Jin Chen,² Bernd Sumpf,³ Götz Erbert,³ Alfred Leitenstorfer,⁴ Franz X. Kärtner,^2,5 Alphan Sennaroglu,¹ and Umit Demirbas⁶

¹Laser Research Laboratory, Departments of Physics, Koç University, Rumelifeneri, Sariyer, Istanbul 34450, Turkey

²Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

³Ferdinand-Braun-Institut, Leibniz Institut für Höchstfrequenztechnik, D-12489 Berlin, Germany

⁴Department of Physics and Center for Applied Photonics, University of Konstanz, D-78464 Konstanz, Germany

⁵Center for Free-Electron Laser Science, DESY and Department of Physics, University of Hamburg, Germany

⁶Laser Technology Laboratory, Antalya International University, 07190 Dosemealti, Antalya, Turkey

^*Corresponding author: ccihan@ku.edu.tr