13 October 1998 Near-field optical guidance and manipulation of atoms
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haruhiko Ito, Haruhiko Ito, K. Otake, K. Otake, Motoichi Ohtsu, Motoichi Ohtsu, } "Near-field optical guidance and manipulation of atoms", Proc. SPIE 3467, Far- and Near-Field Optics: Physics and Information Processing, (13 October 1998); doi: 10.1117/12.326826; https://doi.org/10.1117/12.326826
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