Author Affiliations

Cecilia Y. Chen,^1,6,* Samuel L. Moore,^2,6 Rishi Maiti,^3,6 Anjaly Rajendran,^4,6 Kenji Watanabe,^5,6 Takashi Taniguchi,^5,6 Song Liu,^6,7 James H. Edgar,^6,7 James Hone,^4,6 Dmitri N. Basov,^2,6 and Alexander L. Gaeta^1,3,6

¹Department of Electrical Engineering, Columbia University, New York, New York 10027, USA

²Department of Physics, Columbia University, New York, New York 10027, USA

³Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA

⁴Department of Mechanical Engineering, Columbia University, New York, New York 10027, USA

⁵Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan

⁶International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan

⁷Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, Kansas 66506, USA

^*Corresponding author: cyc2150@columbia.edu