30 April 1993 Doppler-free mid-infrared spectroscopy and direct frequency measurement of a single barium ion transition using a frequency stable ammonia laser
Author Affiliations +
Proceedings Volume 1837, Frequency-Stabilized Lasers and Their Applications; (1993) https://doi.org/10.1117/12.143690
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States
Abstract
The 24.0 THz dipole forbidden, 5d2D3/2 - 5d2D5/2 fine structure transition in a single, trapped, and laser cooled 138Ba+ atom was probed with a tunable sideband from an optically pumped 15NH3 laser. Narrow resonances were observed which showed each Zeeman component to be free of first order and time dilation Doppler effects. Weak motional sidebands were observed adjacent to the central carrier yielding an estimated ion motional temperature below 15 mK. The ammonia laser was stabilized to its sP(8,6) saturated absorption dip, and measurements of the laser output frequency were made with the NRC frequency chain phase-locked to a primary Cs standard. Scanning of the Ba+ D-D resonance with an electro-optically produced sideband of NH3 laser radiation gave a direct measurement of the single ion center frequency. The preliminary series of measurements yielded 24 012 048 309 +/- 17 kHz for the 138Ba+ D-D transition center frequency.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alan A. Madej, B. G. Whitford, K. J. Siemsen, J. D. Sankey, "Doppler-free mid-infrared spectroscopy and direct frequency measurement of a single barium ion transition using a frequency stable ammonia laser", Proc. SPIE 1837, Frequency-Stabilized Lasers and Their Applications, (30 April 1993); doi: 10.1117/12.143690; https://doi.org/10.1117/12.143690
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT


Back to Top