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Digitale Medien

Diffraction of metastable helium atoms by a transmission grating (1991)

Carnal, O. ; Faulstich, A. ; Mlynek, J.

Springer

Applied physics 53 (1991), S. 88-91

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Details

ISSN: 1432-0649

Schlagwort(e): 07.77+p ; 35.10-d ; 42.10Hc

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We report on the diffraction of metastable helium atoms (de Broglie wavelength λ dB ≊ 1Å) passing a free-standing gold grating with a periodicity of 0.5 μm. The observed positions and intensities of the different diffraction peaks are in good agreement with a theoretical model for the grating shape. The overall transmission of the grating for the excited state atoms is about 30%, mainly determined by the grating geometry. Our result indicates that microfabricated transmission gratings can be used as efficient and coherent beam splitters for rare gas atoms in long-lived excited states. This fact offers interesting possibilities in view of atom interferometry with metastable noble gas atoms.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00325536

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