Author Affiliations

Yi Lin,¹ Yang-hao Chan,¹ Woojoo Lee,² Li-Syuan Lu,^4,5 Zhenglu Li,¹ Wen-Hao Chang,^4,5 Chih-Kang Shih,² Steven G. Louie,^1,3 Alessandra Lanzara,^1,3 and Robert A. Kaindl¹

¹Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

²Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA

³Department of Physics, University of California, Berkeley, California 94720, USA

⁴Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan

⁵Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei 11529, Taiwan