Sub-systems for optical frequency measurements application to the 282-nm (199)Hg(+) transition and the 657-nm Ca line

von Frech, B
Veröffentlicht in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control (2000)

Progress at NIST toward absolute frequency standards using stored ions

von Wineland, D J
Veröffentlicht in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control (1990)