Author Affiliations

B. C. Yao,^1,2,* Y. Liu,^3,4 S.-W. Huang,¹ C. Choi,¹ Z. Xie,^1,5 H. Liu,¹ J. Flor Flores,¹ Y.–P. Lai,¹ Y. Wu,² Y. Huang,^3,4 X. F. Duan,^4,6 Y. J. Rao,² and C. W. Wong^1,*

¹Mesoscopic Optics and Quantum Electronics Laboratory, University of California, Los Angeles, CA 90095, United States

²Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), University of Electronic Science and Technology of China, Chengdu 610054, China

³Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, United States

⁴California Nanosystems Institute, University of California, Los Angeles, CA 90095, United States

⁵Department of Physics, Nanjing University, Nanjing 210093, China

⁶Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, United States

^*Corresponding author: yaobaicheng@ucla.edu, cheewei.wong@ucla.edu