Lifetime measurements of the 3D3/2 and 3D5/2 metastable states in CaII |
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Authors: | F Arbes T Gudjons F Kurth G Werth F Marin M Inguscio |
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Institution: | 1. Institut für Physik, Johannes Gutenberg-Universit?t Mainz, W-6500, Mainz, Germany 2. Laboratorio Europeo di Spettroscopie Non-Lineari, Florence, Italy
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Abstract: | The lifetime of the metastable 3D3/2 and 3D5/2 states of Ca+ ions is determined in a r.f. ion trap by laser excitation of this levels and subsequent time delayed probing of the state population by a second laser. In a buffer gas atmosphere of about 10–5–10–6 mbar of He we observe quenching to the ground state and strong finestructure mixing of the two D-states. This mixing allowes only the determination of the combined lifetime. Our result of (3D)=1.24(39) s is in good agreement with theoretical calculations. |
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Keywords: | PACS" target="_blank">PACS 32 70 Fw 32 80 Pj |
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