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Diffraction and reflection of a slow metastable neon beam by an evanescent light grating

Michael Christ, A. Scholz, M. Schiffer +2 more

Optics CommunicationsApr 1, 199437 citations

Diffraction of metastable helium atoms by a transmission grating

O. Carnal, A. Faulstich, J. Mlynek

Applied Physics BAug 1, 199136 citations

Diffraction of atoms by a standing evanescent light wave — A reflection grating for atoms

Joseph V. Hajnal, Geoffrey I. Opat

Optics CommunicationsMay 1, 198949 citations

Coherent Atom Optics With Fast Metastable Beams: Metastable Helium Diffraction By 1D and 2D Magnetized Reflection Gratings

Jules Grucker, J. Baudon, J.‐C. Karam +3 more

1D and 2D reflection gratings (Permalloy stripes or dots deposited on silicon), immersed in an external homogeneous static magnetic field, are used to study 1D and 2D diffraction of fast metastable helium atoms He* (23S1). Both the grazing incidence used here and the repulsive potential (for sub‐level m = −1) generated by the magnetisation reduce the quenching effect. This periodically structured potential is responsible for the diffraction in the incidence plane as well as for the diffraction in the perpendicular plane.1D and 2D reflection gratings (Permalloy stripes or dots deposited on silicon), immersed in an external homogeneous static magnetic field, are used to study 1D and 2D diffraction of fast metastable helium atoms He* (23S1). Both the grazing incidence used here and the repulsive potential (for sub‐level m = −1) generated by the magnetisation reduce the quenching effect. This periodically structured potential is responsible for the diffraction in the incidence plane as well as for the diffraction in the perpendicular plane.

AIP conference proceedingsJan 1, 20070 citations

Coherent Atom Optics with fast metastable rare gas atoms

Jules Grucker, J. Baudon, J.‐C. Karam +4 more

Coherent atom optics experiments making use of an ultra‐narrow beam of fast metastable atoms generated by metastability exchange are reported. The transverse coherence of the beam (coherence radius of 1.7 μm for He*, 1.2 μm for Ne*, 0.87 μm for Ar*) is demonstrated via the atomic diffraction by a non‐magnetic 2μm‐period reflection grating. The combination of the non‐scalar van der Waals (vdW) interaction with the Zeeman interaction generated by a static magnetic field gives rise to “vdW‐Zeeman” transitions among Zeeman sub‐levels. Exo‐energetic transitions of this type are observed with Ne*(3P2) atoms traversing a copper micro‐slit grating. They can be used as a tunable beam splitter in an inelastic Fresnel bi‐prism atom interferometer.Coherent atom optics experiments making use of an ultra‐narrow beam of fast metastable atoms generated by metastability exchange are reported. The transverse coherence of the beam (coherence radius of 1.7 μm for He*, 1.2 μm for Ne*, 0.87 μm for Ar*) is demonstrated via the atomic diffraction by a non‐magnetic 2μm‐period reflection grating. The combination of the non‐scalar van der Waals (vdW) interaction with the Zeeman interaction generated by a static magnetic field gives rise to “vdW‐Zeeman” transitions among Zeeman sub‐levels. Exo‐energetic transitions of this type are observed with Ne*(3P2) atoms traversing a copper micro‐slit grating. They can be used as a tunable beam splitter in an inelastic Fresnel bi‐prism atom interferometer.

AIP conference proceedingsJan 1, 20061 citation

Atomic diffraction by light gratings with very short wavelengths

Pedro Sancho

arXiv:1306.5458The European Physical Journal DJun 1, 20130 citations

Diffraction of fast metastable atoms by micrometric reflection gratings

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