Use of Bessel $J_1$ Laser Beam to Focus an Atomic Beam into a Nano-scale Dot
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概要
- 論文の詳細を見る
We propose a novel scheme to guide atomic beams with submicrometer spot sizes and beam propagation lengths of more than 1 centimeter. By using a Bessel $J_1$ beam for guiding atoms, the atoms are confined to the center dark region of the doughnut mode of $J_1$ beam. Our numerical analysis results show that a guided atomic beam maintains its width which is less than 100 nm. We also propose a scheme which combines the Bessel $J_1$ beam with a magneto-optical trap and a Bessel $J_0$ beam, where the unfocused part of an atomic flux, i.e., the background component, is suppressed.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-07-15
著者
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KAWATA Satoshi
Department of Chemistry, Graduate School of Science, Osaka University
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Kawata S
Osaka Univ.
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Kawata Satoshi
Department Of Applied Physics Graduate School Of Engineering Osaka University
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Okamoto Kenji
Department of Chemistry, Graduate School of Science, Kyoto University
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Okamoto Kenji
Department Of Applied Physics Osaka University
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INOUYE Yasushi
Department of Applied Physics, Osaka University
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Kawata Satoshi
Department Of Applied Physics Osaka University
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Inouye Y
Department Of Applied Physics Osaka University
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Inouye Yasushi
Department Of Applied Physics Osaka University
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Kawata Satoshi
Department Of Appkied Physicy Osaka University
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