Authors:
Udem, T
Diddams, SA
Vogel, KR
Oates, CW
Curtis, EA
Lee, WD
Itano, WM
Drullinger, RE
Bergquist, JC
Hollberg, L
Citation: T. Udem et al., Absolute frequency measurements of the Hg+ and Ca optical clock transitions with a femtosecond laser, PHYS REV L, 86(22), 2001, pp. 4996-4999