Light shifts measured in a single trapped Ba+ion

Precision measurement of light shifts in a single trapped Ba $^+$ ion as test of atomic theoryPrecision measurement of light shifts in a single trapped Ba$^+$ ion as test of atomic theory

Jeff A. Sherman, Timo Koerber, Warren Nagourney +1 more

Bulletin of the American Physical SocietyMay 19, 20050 citations

Observation of a saturation dip in the fluorescence light from electrodynamically trapped Ba+ ions

Reinhard Iffländer, Guenter Werth

Optics CommunicationsJun 1, 19775 citations

Telecom single photons from a trapped Ba+ ion

Uday Saha, John Hannegan, James Siverns +3 more

Bulletin of the American Physical SocietyJun 3, 20210 citations

A far-off-resonance optical trap for a Ba+ ion

Thomas M. Huber, Alexander Lambrecht, Julian Schmidt +2 more

arXiv:1408.3269Nature CommunicationsNov 24, 201461 citations

rf Spectroscopy with a Single Ba+ Ion

Timo Koerber, M. Schacht, Kristi R. G. Hendrickson +2 more

We have employed the method of shelving to measure Zeeman resonances of a single trapped Ba+ ion. We use optical pumping to place the ion in a selected magnetic sublevel of either the 6S(1/2) ground state or the 5D(3/2) metastable state. The ion is exposed to an rf field, and a probing/shelving mechanism detects whether spin-flip transitions have taken place. We have observed rf transitions with linewidths of 15 Hz, limited by magnetic-field noise. We have also observed the shift in the Zeeman frequency when the ion is illuminated by off-resonant light. A simultaneous measurement of such light shifts in two atomic states of Ba+ will permit a precise determination of the ratio of transition matrix elements.We have employed the method of shelving to measure Zeeman resonances of a single trapped Ba+ ion. We use optical pumping to place the ion in a selected magnetic sublevel of either the 6S(1/2) ground state or the 5D(3/2) metastable state. The ion is exposed to an rf field, and a probing/shelving mechanism detects whether spin-flip transitions have taken place. We have observed rf transitions with linewidths of 15 Hz, limited by magnetic-field noise. We have also observed the shift in the Zeeman frequency when the ion is illuminated by off-resonant light. A simultaneous measurement of such light shifts in two atomic states of Ba+ will permit a precise determination of the ratio of transition matrix elements.

Physical Review LettersMar 26, 200225 citations

The “Trapped State” of a Trapped Ion—Line Shifts and Shape

Ingo Siemers, Michael Schubert, R. Blatt +2 more

The fluorescence of a single r.f.-trapped and cooled Ba + ion, induced by the light of two lasers, shows a null at the S 1/2 - D 3/2 resonance of the frequency difference. We have measured the Zeeman effect and power broadening of this "dark line", and also the shift of the associated "bright" line, which is related to the Raman light shift. A 75 kHz wide dark line was observed. Such a resonance might be used to control a 147 THz standard frequency free of systematic shifts in excess of 10 -15 .The fluorescence of a single r.f.-trapped and cooled Ba + ion, induced by the light of two lasers, shows a null at the S 1/2 - D 3/2 resonance of the frequency difference. We have measured the Zeeman effect and power broadening of this "dark line", and also the shift of the associated "bright" line, which is related to the Raman light shift. A 75 kHz wide dark line was observed. Such a resonance might be used to control a 147 THz standard frequency free of systematic shifts in excess of 10 -15 .

Europhysics Letters (EPL)Feb 14, 199268 citations

Precision measurement of light shifts in a single trapped Ba

^+

ion as test of atomic theory