Author Affiliations

Gregory Moille,^1,2,* Qing Li,^1,3 Travis C. Briles,^4,5 Su-Peng Yu,^4,5 Tara Drake,^4,5 Xiyuan Lu,^1,2 Ashutosh Rao,^1,2 Daron Westly,¹ Scott B. Papp,^4,5 and Kartik Srinivasan^1,6,7

¹Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

²Institute for Research in Electronics and Applied Physics and Maryland Nanocenter, University of Maryland, College Park, Maryland 20742, USA

³Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA

⁴Time and Frequency Division, National Institute of Standards and Technology, 385 Broadway, Boulder, Colorado 80305, USA

⁵Department of Physics, University of Colorado, Boulder, Colorado 80309, USA

⁶Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA

⁷e-mail: kartik.srinivasan@nist.giv

^*Corresponding author: gmoille@umd.edu