7 April 1995 Optimizing capture efficiency in a magneto-optical trap
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We have studied the user of vapor-cell magneto-optical traps for the collection and investigation of trace elements of radioactive isotopes. The fundamental processes governing efficient collection of neutral isotopes in a trap have been identified and integrated into a model that accurately describes the collection process. The model has been verified experimentally; a 6% capture efficiency has been demonstrated for stable Cs isotopes and we predict a simple change in trapping cell geometry will allow a 50% capture efficiency. This paper discussed the issues involved in efficient capture, such as the trapping laser properties and wall-coatings. It describes a new cell design for efficient capture and discusses current work towards trapping small numbers of 221Fr (T1/2 equals 4.8 minutes) atoms.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michelle Stephens, Carl E. Wieman, K. Corwin, Zheng-Tian Lu, H. Gould, T. Dinneen, "Optimizing capture efficiency in a magneto-optical trap", Proc. SPIE 2385, Advanced Optical Methods for Ultrasensitive Detection, (7 April 1995); doi: 10.1117/12.206446; https://doi.org/10.1117/12.206446

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