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APS

Development of an optical frequency standard based on a Calcium magneto-optical trap.

Chris W. Oates, Michelle S. Stephens, Leo W. Hollberg

Published Apr 1, 1997• 0 citations
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Proposed Active Optical Frequency Standards based on Magneto-optical Trap Trapped Atoms

Wei Zhuang, Deshui Yu, Zhenhui Chen +2 more

A new conception of optical frequency standards, active optical frequency standards (AOFS) is under developing. In this report, we propose a novel scheme for active optical frequency standards based on magneto-optical trap (MOT) trapped atoms. With the advantages of 4-level atomic system proposed here, this scheme overcomes the main limitations on the accuracy of active optical clock based on atomic beam due to Doppler effect.

Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)•May 1, 2007•9 citations

Combination of magneto-optical trapping and mass spectrometry for calcium-isotope analysis

Kwang-Hoon Ko, Yong Hee Kim, Lim Lee +5 more

A method using a combination of a magneto-optical trap and a mass spectrometer, referred to as atom trap-mass spectrometry (ATMS), is employed for calcium-isotope analysis. A calcium magneto-optical trap with a Zeeman slower is used in the first isotope-selection stage of the ATMS. The trapped calcium isotope is ionized by using a frequency-doubled Nd:YAG laser, and the photoions are analyzed using a time-of-flight mass spectrometer. The isotope-selection characteristics of the combination method and further improvements in the method are discussed in this work.

Journal of the Korean Physical Society•Aug 1, 2013•0 citations
A method using a combination of a magneto-optical trap and a mass spectrometer, referred to as atom trap-mass spectrometry (ATMS), is employed for calcium-isotope analysis. A calcium magneto-optical trap with a Zeeman slower is used in the first isotope-selection stage of the ATMS. The trapped calcium isotope is ionized by using a frequency-doubled Nd:YAG laser, and the photoions are analyzed using a time-of-flight mass spectrometer. The isotope-selection characteristics of the combination method and further improvements in the method are discussed in this work.