ATOMIC MOTION IN A HIGH-INTENSITY STANDING WAVE LASER FIELD.
Item
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Title
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ATOMIC MOTION IN A HIGH-INTENSITY STANDING WAVE LASER FIELD.
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Identifier
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AAI8713792
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identifier
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8713792
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Creator
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SAEZ RAMDOHR, LUIS FELIPE.
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Contributor
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Marvin H. Mittleman
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Date
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1987
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Atomic
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Abstract
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This work discusses the effect of a high intensity standing wave laser field on the motion of neutral atoms moving with a relatively high velocity. The analysis involves a detailed calculation of the force acting on the atoms and the calculation of the diffusion tensor associated with the fluctuations of the quantum force operator. The high intensity laser field limit corresponds to a Rabi frequency much greater than the natural rate of the atom. The general results are valid for any atomic velocity. We then specialize the results to the case of slow and fast atoms where the Doppler shift of the laser frequency due to the atomic motion is either smaller or larger than the natural decay rate of the atom.;The results obtained for the force and diffusion tensor are applied to a particular ideal experiment that studies the evolution of a fast atomic beam crossing a high intensity laser beam. The theories developed previous to ours, for a similar laser configuration, discuss only the low atomic velocities case and not the more realistic case of fast atoms. Here, an approximate solution of the equation for the distribution is obtained. Starting from the approximate distribution function, the deflection angle and dispersion angle for the atomic beam with respect to the free motion are calculated.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Physics
