Author Affiliations

Zhifeng Zhang,^1,* Xingdu Qiao,¹ Bikashkali Midya,² Kevin Liu,² Haoqi Zhao,¹ Jingbo Sun,³ Tianwei Wu,² Danilo Gomes Pires,³ Wenjing Liu,² Zihe Gao,² Ritesh Agarwal,² Josep Miquel Jornet,⁴ Stefano Longhi,^5,6 Natalia M. Litchinitser,³ and Liang Feng^2,1

¹Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA

²Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA

³Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, USA

⁴Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA

⁵Dipartimento di Fisica, Politecnico di Milano and Istituto di Fotonica e Nanotecnologie del Consiglio Nazionale delle Ricerche, Piazza L. da Vinci 32, Milano I-20133, Italy

⁶Instituto de Fisica Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB) - Palma de Mallorca, Spain

^*Corresponding author: zfzhang@seas.upenn.edu