Issue |
Europhys. Lett.
Volume 33, Number 5, February II 1996
|
|
---|---|---|
Page(s) | 347 - 352 | |
Section | Atomic, molecular and optical physics | |
DOI | https://doi.org/10.1209/epl/i1996-00345-2 | |
Published online | 01 September 2002 |
Dark times in the resonance fluorescence of trapped 171Yb ions caused by spontaneous quantum jumps to the 2D3/2 (F=2) state
Laboratory 4.41, Physikalisch-Technische Bendesanstalt,
Postfach 3345, D-38023
Braunschweig, FRG
Received:
8
September
1995
Accepted:
18
December
1995
The paper reports experimental investigations on ions confined
in a radiofrequency Paul trap. Single ions are cooled and optically
detected by laser excitation of the cycling
hyperfine component
of the
-
resonance transition. The metastable
level which is rapidly populated by decay from the
level is depleted by a second laser source. The resonance
fluorescence signal exhibits dark periods due to a small rate of spontaneous
transitions to the
level which is coupled only weakly to
the laser-cooling excitation cycle. Prospects for an optical frequency
standard based on excitation of the narrow
-
transition of
at a wavelength of 435 nm are
discussed.
PACS: 32.80.Pj – Optical cooling of atoms; trapping / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 06.30.Ft – Time and frequency
© EDP Sciences, 1996
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