Compensation of Field-Induced Frequency Shifts in Ramsey Spectroscopy of Optical Clock Transitions

Details Compensation of Field-Induced Frequency Shifts in Ramsey Spectroscopy of Optical Clock Transitions Compensation of Field-Induced Frequency Shifts in Ramsey Spectroscopy of Optical Clock Transitions

2009-03-22

arxiv.org/abs/0903.3716v2

Physics

Optics

5 pages, 3 figures

Scientific paper

We have extended Ramsey spectroscopy by stepping the probe frequency during the two Ramsey excitation pulses to compensate frequency shifts induced by the excitation itself. This makes precision Ramsey spectroscopy applicable even for transitions that have Stark and Zeeman shifts comparable to the spectroscopic resolution. The method enables a new way to evaluate and compensate key frequency shifts, which benefits in particular, optical clocks based on magnetic field-induced, spectroscopy, two-photon transitions, or heavily forbidden transitions.

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