Laser-near-field-based Atomic Lens: Quantum Wave Optics Consideration |
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| Authors: | VV Klimov VS Letokhov |
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| Affiliation: | 1. P. N. Lebedev Physical Institute , Russian Academy of Sciences , 53 Leninskii Prospect, 117924, Moscow, Russia;2. Institute of Spectroscopy , Russian Academy of Sciences , 142092, Troitsk, Moscow Region, Russia;3. Laboratoire de Physique des Lasers , Université Paris-Nord , Av. J. B. Clement, 93430, Villetaneuse, France |
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| Abstract: | Abstract This paper examines the focusing of an atomic beam by the near field of laser radiation diffracted by a small aperture. The wave properties of the atom are taken into consideration within the framework of an approximate Schrödinger equation. The possibility is demonstrated of focusing an atomic beam into a spot some 3 nm across, the atomic and laser beam characteristics being quite acceptable. The main contribution to the spot size is shown to be from spherical aberrations and diffraction effects, the chromatic aberrations of the atomic beam with a 5% velocity distribution broadening having a lesser effect. |
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