Author Affiliations

Vivek Pareek,^1,† David Bacon,^1,† Xing Zhu,^1,† Yang-Hao Chan,² Fabio Bussolotti,³ Nicholas S Chan,¹ Joel Pérez Urquizo,¹ Kenji Watanabe,⁴ Takashi Taniguchi,⁴ Michael K. Man,¹ Julien Madéo,¹ Diana Qiu,⁵ Kuan Eng Johnson Goh,^3,6 Felipe H. da Jornada,⁷ and Keshav M. Dani¹

¹Femtosecond Spectroscopy Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, Japan 904-0495

²Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan

³Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Singapore, 138634 Singapore

⁴National Institute for Materials Science; 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

⁵Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, USA

⁶Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117551 Singapore

⁷Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA

^†equal contribution