Method for controlling movement of neutral atom and apparatus fo

Details Method for controlling movement of neutral atom and apparatus fo Method for controlling movement of neutral atom and apparatus fo

1993-02-25

1994-08-09

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Optical output stabilization

372 6, 372701, 385117, 359385, 359387, H01S 313

Patent

active

053373243

ABSTRACT:
In order to control the movement of a single neutral atom or a small number of neutral atoms to trap the neutral atom or atoms at a distal end of an optical fiber probe, a laser light having a frequency which is slightly lower than a resonance frequency of the atom is made incident upon a proximal end of the optical fiber probe, and an evanescent light is generated from a sharpened distal end of the optical fiber probe whose tip is sharpened such that its radius of curvature is smaller than one wavelength of the laser light. The distal end of the optical fiber probe is brought close to the neutral atom or atoms to trap the neutral atom or atoms within an existing volume of the evanescent light. When the light frequency is changed to a value slightly higher than the resonance frequency of the atom, the trapped neutral atom or atoms are pushed out of the existing volume of the evanescent light. The crystal growth can be performed with a single atom level.

REFERENCES:
patent: 4941726 (1990-07-01), Russell et al.
patent: 5167444 (1992-12-01), Hall
Journal of Japanese Society of Applied Physics, No. 60, Sep. 1991, pp. 864-874, "Laser Cooling of Neutral Atoms and Its Applications", Fujio Shimizu.

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