TY - JOUR
T1 - Lifetime of the 7s6d D1 2 atomic state of radium
AU - Trimble, W. L.
AU - Sulai, I. A.
AU - Ahmad, I.
AU - Bailey, K.
AU - Graner, B.
AU - Greene, J. P.
AU - Holt, R. J.
AU - Korsch, W.
AU - Lu, Z. T.
AU - Mueller, P.
AU - O'Connor, T. P.
PY - 2009/11/10
Y1 - 2009/11/10
N2 - The lifetime of the 7s6d D1 2 state of atomic radium is determined to be 385 (45) μs using cold R 226 a atoms prepared in a magneto-optical trap. The D1 2 state is populated from the decay of the P1 1 state which is excited by a pulse of 483 nm light. The decay of the D1 2 state is observed by detecting delayed fluorescence at 714 nm from the last step in the decay sequence P1 1 - D1 2 - P3 1 - S1 0. The measured lifetime is compared to a number of theoretical calculations. An improved value of the 7s7p P1 1 level of 20715.598 (6) cm-1 is obtained.
AB - The lifetime of the 7s6d D1 2 state of atomic radium is determined to be 385 (45) μs using cold R 226 a atoms prepared in a magneto-optical trap. The D1 2 state is populated from the decay of the P1 1 state which is excited by a pulse of 483 nm light. The decay of the D1 2 state is observed by detecting delayed fluorescence at 714 nm from the last step in the decay sequence P1 1 - D1 2 - P3 1 - S1 0. The measured lifetime is compared to a number of theoretical calculations. An improved value of the 7s7p P1 1 level of 20715.598 (6) cm-1 is obtained.
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U2 - 10.1103/PhysRevA.80.054501
DO - 10.1103/PhysRevA.80.054501
M3 - Article
AN - SCOPUS:70450250144
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 054501
ER -