Abstract
We demonstrated a Diode Oscillator Fiber Amplification (DOFA) system in order to study the 63 P 1 ↔53 D 1 (1539 nm) transition line of a neutral ytterbium atom that is accessed by the stepwise excitation of the ground state. The frequency of the DOFA system was doubled by a MgO:PPLN crystal for the resonant excitation of the 61 S 0 ↔63 P 1 transition. The frequency of the second harmonic beam was stabilized to the 61 S 0 ↔63 P 1 transition of each isotope with the stability of about 2 MHz. We performed absorption spectroscopy on the 63 P 1 ↔53 D 1 (1539 nm) transition after the velocity selective excitation by the frequency-doubled beam. The isotope shifts in the 63 P 1 ↔53 D 1 (1539 nm) transition were directly measured for the first time. The relative isotope shifts from 174Yb were measured as −105.8 MHz and 109.7 MHz for 176Yb and 172Yb, respectively.
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Lee, L., Park, H., Ko, KH. et al. Measurement of the isotope shift of the 63 P 1 ↔53 D 1 transition of ytterbium by using a diode oscillator fiber amplified laser. Appl. Phys. B 100, 361–366 (2010). https://doi.org/10.1007/s00340-010-3949-2
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DOI: https://doi.org/10.1007/s00340-010-3949-2