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Atomic Funnel Composed of an HE11-Mode Output Hollow Beam |
| NI Yun2;LIU Nan-Chun2;YIN Jian-Ping1,2 |
| 1Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062
2Department of Physics, Suzhou University, Suzhou 215006 |
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| Cite this article: |
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NI Yun, LIU Nan-Chun, YIN Jian-Ping 2003 Chin. Phys. Lett. 20 1054-1057 |
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Abstract Using exact solutions of Maxwell equations based on the vector model, we calculate the diffracted near- and far-field distributions of the HE11-mode output beam from a micron-sized hollow optical fibre under the Fresnel approximation, and compare the differences between the HE11- and LP01-mode output beams. Our study shows that it is unsuitable to calculate the diffracted near-field distribution of the hollow fibre by using weakly waveguiding approximation, and the near- and far-field intensity distributions of the HE11-mode output beam are doughnut-like, which can be used to form a simple atomic funnel as it is blue-detuned.
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| Keywords:
42.50.Vk
32.80.Lg
32.80.Pj
03.50.De
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Published: 01 July 2003
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