| ATOMIC AND MOLECULAR PHYSICS |
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Realization of Green MOT for Ytterbium Atoms |
| ZHAO Peng-Yi1,2, XIONG Zhuan-Xian1,2, LONG Yun1,2, HE Ling-Xiang1, LÜ Bao-Long1 |
| 1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 4300712Graduate University, Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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ZHAO Peng-Yi, XIONG Zhuan-Xian, LONG Yun et al 2009 Chin. Phys. Lett. 26 083702 |
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Abstract We report the experimental realization of a magneto-optical trap (MOT) of 174Yb atoms operating on the 1S0-3P1 intercombination transition at 555.8nm. The green MOT is loaded by a Zeeman-slowed atomic beam. In order to increase the capture velocity of the MOT, we use the trapping laser beams consisting of five discrete frequency components obtained by modulating the laser light through an electro-optic modulator. The trapped atomic number of the 174Yb isotope is about 6.2× 105, and the temperature of the cold atomic cloud is estimated to be about 100μK. The success of the green MOT is an important step towards the goal of an ytterbium optical clock.
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| Keywords:
37.10.De
37.10.Gh
37.20.+j
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Received: 05 May 2009
Published: 30 July 2009
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| PACS: |
37.10.De
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(Atom cooling methods)
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37.10.Gh
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(Atom traps and guides)
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37.20.+j
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(Atomic and molecular beam sources and techniques)
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