Author Affiliations

E.A. Goldschmidt,^1,2,‡ S.E. Beavan,^1,3 M.D. Eisaman,^1,2,† J. Fan,^1,2 M. Hohensee,⁴ Z.H. Levine,⁵ L. Mathey,^2,5 S.V. Polyakov,^1,2 and A.L. Migdall^1,2

¹Optical Technology Division, National Institute Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA

²Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA

³Laser Physics Centre, RSPhysSE, Australian National University, Canberra, ACT 0200, Australia

⁴Physics Department, Harvard University, 17 Oxford St., Cambridge, MA 02138, USA

⁵Electron and Optical Physics Division, National Institute Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA

^†M.D. Eisaman is currently with Xerox PARC.

^‡ elizabeth.goldschmidt@nist.gov