261 citations · 677 across the 5 of their papers we have counts for
1 paper · 2 filters
Th. Udem, S. A. Diddams, K. R. Vogel +7
The frequency comb created by a femtosecond mode-locked laser and a microstructured fiber is used to phase coherently measure the frequencies of both the Hg^+ and Ca optical standa…