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Stark Deceleration of an Effusive Molecular Beam by a Single Semi-Gaussian Beam |
| YIN Ya-Ling;XIA Yong;YIN Jian-Ping |
| Key Laboratory for Optical and Magnetic Resonance Spectroscopy of the Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062 |
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| Cite this article: |
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YIN Ya-Ling, XIA Yong, YIN Jian-Ping 2006 Chin. Phys. Lett. 23 2737-2740 |
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Abstract We propose a novel scheme to decelerate a cw precooled molecular beam by using an optical Stark decelerator, which is composed of a red-detuned cw semi-Gaussian beam. The dynamical process of the optical Stark deceleration for a cw methane molecular beam is studied by Monte Carlo simulations. It is realized that the proposed optical Stark decelerator can be used to continuously slow a cw methane molecular beam with a longitudinal temperature of 30mK, and a maximum reduction in the most probable speed of 0.388m/s (corresponding to a relative change of 9.93%) can be obtained by using a single semi-Gaussian beam with a power of 500W and a maximum central intensity of about 7.96×107W/cm2.
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| Keywords:
33.80.Ps
32.80.Lg
39.10.+j
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Published: 01 October 2006
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