APS
Progress toward an Optical Frequency Standard using ^199Hg^+ Ions
Brent C. Young, Dana J. Berkeland, Flávio C. Cruz, Jonas Bergquist, Wayne M. Itano, D. J. Wineland
APS
Brent C. Young, Dana J. Berkeland, Flávio C. Cruz, Jonas Bergquist, Wayne M. Itano, D. J. Wineland