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Schlieren imaging of nano-scale atom-surface inelastic transition using a Fresnel biprism atom interferometer

. Surface-induced exo-energetic inelastic transitions among atomic Zeeman states in a magnetic field (“van der Waals – Zeeman” transitions) are useable as tuneable beam splitters. A transversally coherent atom beam impinging a pair of opposite surfaces (e.g. 2 edges of a slit or of an ensemble of pe...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2008-05, Vol.47 (3), p.427-431
Main Authors: Grucker, J., Baudon, J., Perales, F., Dutier, G., Bocvarski, V., Karam, J.-C., Vassilev, G., Ducloy, M.
Format: Article
Language:English
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Summary:. Surface-induced exo-energetic inelastic transitions among atomic Zeeman states in a magnetic field (“van der Waals – Zeeman” transitions) are useable as tuneable beam splitters. A transversally coherent atom beam impinging a pair of opposite surfaces (e.g. 2 edges of a slit or of an ensemble of periodic slits) gives rise to two coherently diffracted wave packets. Within the wave packet overlap, non-localised interference fringes of the Young-slit type are predicted. From the diffraction pattern observed in the Fraunhofer regime (Schlieren image), detailed information about the transition amplitude on a scale of a few nanometers should be derived.
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2008-00051-1