Direct frequency comb spectroscopy of trapped ions

Details Direct frequency comb spectroscopy of trapped ions Direct frequency comb spectroscopy of trapped ions

2008-12-22

arxiv.org/abs/0812.4212v1

Phys. Rev. Lett. 102, 223901 (2009)

Physics

Atomic Physics

4 pages, 5 figure

Scientific paper

10.1103/PhysRevLett.102.223901

Direct frequency comb spectroscopy of trapped ions is demonstated for the first time. It is shown that the 4s^2S_(1/2)-4p^2P_(3/2) transition in calcium ions can be excited directly with a frequency comb laser that is upconverted to 393 nm. Detection of the transition is performed using a shelving scheme to suppress background signal from non-resonant comb modes. The measured transition frequency of f=761 905 012.7(0.5) MHz presents an improvement in accuracy of more than two orders of magnitude.

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