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Title

Beaming matter waves from a subwavelength aperture

AuthorsFernández-Domínguez, A. I.; Moreno, Esteban; Martín-Moreno, Luis; García-Vidal, F. J.
Issue Date17-Aug-2006
PublisherAmerican Physical Society
CitationPhysical Review A 74(2): 1050-2947 (2006)
AbstractWe show theoretically that the shape of a beam of matter waves (cold atoms) emerging from one subwavelength aperture pierced in a film can be collimated within a few degrees. By means of an external laser field, a potential well for the atoms in the direction perpendicular to the surface is created. In this way, a running surface matter wave can be excited when atoms diffract from the aperture. If the aperture is surrounded with a finite array of indentations, coherent scattering of the surface matter wave with these indentations molds the angular distribution of the matter wave in the far field.
Description4 pages, 4 figures.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevA.74.021601
URIhttp://hdl.handle.net/10261/19543
DOI10.1103/PhysRevA.74.021601
ISSN1050-2947
Appears in Collections:(ICMA) Artículos
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