Nonlinear Doppler-free spectroscopy of the 6 1S 0-6 3P 1 intercombination transition in barium
Abstract
Doppler-free saturated absorption resonances on an intercombination transition of Ba (λ=791 nm) have been observed with a highly coherent laser diode. A width of 820±50 kHz and a contrast of 12% are obtained. The isotopic shift for 138Ba and 136Ba has been found to be 109±2 MHz. The properties of the intercombination lines in Ba, Ca and resonant transitions of alkali metals as a reference for the frequency stabilization of the laser diode have been compared.
- Publication:
-
Optics Communications
- Pub Date:
- September 1992
- DOI:
- 10.1016/0030-4018(92)90128-E
- Bibcode:
- 1992OptCo..93...54A