中国物理B ›› 2007, Vol. 16 ›› Issue (3): 707-717.doi: 10.1088/1009-1963/16/3/025

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Electrostatic surface guiding of cold polar molecules with a single charged wire

邓联忠, 夏勇, 印建平   

  1. Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China
  • 收稿日期:2006-03-20 修回日期:2006-06-09 出版日期:2007-03-20 发布日期:2007-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos~10174050, 10374029, 10434046 and 10674047) and the Science and Technology Commission of Shanghai Municipality, China (Grant No~04DZ14009), Shanghai Priority Academic Discipline and the 211 Foundation of the Educational Ministry of China.

Electrostatic surface guiding of cold polar molecules with a single charged wire

Deng Lian-Zhong(邓联忠), Xia Yong(夏勇), and Yin Jian-Ping(印建平)†   

  1. Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2006-03-20 Revised:2006-06-09 Online:2007-03-20 Published:2007-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos~10174050, 10374029, 10434046 and 10674047) and the Science and Technology Commission of Shanghai Municipality, China (Grant No~04DZ14009), Shanghai Priority Academic Discipline and the 211 Foundation of the Educational Ministry of China.

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摘要： This paper proposes a scheme to guide cold polar molecules by using a single charged wire half embanked in an insulating substrate and a homogeneous bias electric field, which is generated by a plate capacitor composed of two infinite parallel metal plates. The spatial distributions of the electrostatic field produced by the combination of the charged wire and the plate capacitor and the corresponding Stark potentials (including dipole forces) for metastable CO molecules are calculated, the relationships between the electric field and the parameters of our charged-wire layout are analysed. It also studies the influences of the insulator on the electric field distribution and the discharge effect. This study shows that the proposed scheme can be used to guide cold polar molecules in the weak-field -- seeking states, and to form various molecule-optical elements, such as molecular funnel, molecular beam-splitters and molecule interferometer, even to construct a variety of integrated molecule-optical elements and their molecule chips.

Abstract: This paper proposes a scheme to guide cold polar molecules by using a single charged wire half embanked in an insulating substrate and a homogeneous bias electric field, which is generated by a plate capacitor composed of two infinite parallel metal plates. The spatial distributions of the electrostatic field produced by the combination of the charged wire and the plate capacitor and the corresponding Stark potentials (including dipole forces) for metastable CO molecules are calculated, the relationships between the electric field and the parameters of our charged-wire layout are analysed. It also studies the influences of the insulator on the electric field distribution and the discharge effect. This study shows that the proposed scheme can be used to guide cold polar molecules in the weak-field -- seeking states, and to form various molecule-optical elements, such as molecular funnel, molecular beam-splitters and molecule interferometer, even to construct a variety of integrated molecule-optical elements and their molecule chips.

Key words: cold polar molecules, electrostatic field, Stark effect, molecule-optical elements

中图分类号:  (Electrostatics; Poisson and Laplace equations, boundary-value problems)

  • 41.20.Cv
33.57.+c (Magneto-optical and electro-optical spectra and effects) 37.10.Mn (Slowing and cooling of molecules) 42.79.Fm (Reflectors, beam splitters, and deflectors)