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Proceedings Paper

Near-field optical guidance and manipulation of atoms
Author(s): Haruhiko Ito; K. Otake; Motoichi Ohtsu
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Paper Abstract

We describe guiding of neutral atoms through a hollow optical fiber with a micron-sized hollow core. Two-step photoionization experiment shows the frequency dispersion properties of the dipole interaction between an atom and an optical near field. These characteristics are advantageous to species- and state-selective manipulation of atoms. Then we discus a new scheme of atom deposition by means of the guiding technique, including a numerical simulation. We also present two methods for controlling atomic motion using a sharped optical fiber with a nanometric optical n ear field, i.e., atom deflection and atom trap. Deflection angle and trap potential are estimated based on a near-field intensity distribution derived from a Yukawa-type screened potential. The manipulation techniques are useful for precise control of atoms with a spatial accuracy beyond diffraction limit, which will lead to atomic-scale crystal growth.

Paper Details

Date Published: 13 October 1998
PDF: 8 pages
Proc. SPIE 3467, Far- and Near-Field Optics: Physics and Information Processing, (13 October 1998); doi: 10.1117/12.326826
Show Author Affiliations
Haruhiko Ito, PRESTO Japan Science and Technology Corp. and Kanagawa Academy of Science and Technology (Japan)
K. Otake, Tokyo Institute of Technology (Japan)
Motoichi Ohtsu, Tokyo Institute of Technology and Kanagawa Academy of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 3467:
Far- and Near-Field Optics: Physics and Information Processing
Suganda Jutamulia; Toshimitsu Asakura, Editor(s)

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