Author Affiliations

Kristina F. Chang,^1,* Daniel M. B. Lesko,^1,2 Peter Chang,^1,3 Alexander J. Lind,^1,3 Eugene Tsao,^1,4 Carter Mashburn,^1,3 and Scott A. Diddams^1,3,4

¹Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA.

²Department of Chemistry, University of Colorado Boulder, Cristol Chemistry and Biochemistry, Boulder, CO 80309, USA.

³Department of Physics, University of Colorado Boulder, Libby Dr, Boulder, CO 80302, USA.

⁴Department of Electrical, Computer, and Energy Engineering, University of Colorado Boulder, 425 UCB 1B55, Boulder, CO 80309, USA.

^*Corresponding author: kristina.chang@nist.gov