منابع مشابه
An interferometer for atoms.
We have demonstrated an interferometer for atoms. A three-grating geometry is used, in which the interfering beams are distinctly separated in both position and momentum. We used a highly collimated beam of sodium atoms with a de Broglie wavelength of 16 pm and high-quality 0.4-pm-period freestanding gratings which we fabricated using a novel method. The interference signal is 70 counts/s, whic...
متن کامل1 An Interferometer for Atoms
We have demonstrated a novel diffraction grating for atoms. Acollimated beam of sodium atoms with a de Broglie wavelength of 17picometers was diffracted by transmission through an array of slitswith a spatial period of 0.2 μm formed in a gold membrane. This isthe first reported diffraction of atoms by a fabricated periodicstructure. Our transmission diffraction grating for a...
متن کاملInterferometer-type structures for guided atoms.
We experimentally demonstrate interferometer-type guiding structures for neutral atoms based on dipole potentials created by microfabricated optical systems. As a central element we use an array of atom waveguides being formed by focusing a red-detuned laser beam with an array of cylindrical microlenses. Combining two of these arrays, we realize X-shaped beam splitters and more complex systems ...
متن کاملLattice interferometer for laser-cooled atoms.
We demonstrate an atom interferometer in which atoms are laser cooled into a 1D optical lattice, suddenly released, and later subjected to a pulsed optical lattice. For short pulses, a simple analytical theory predicts the signal. We investigate both short and longer pulses where the analytical theory fails. Longer pulses yield higher precision and larger signals, and we observe a coherent sign...
متن کاملTwo-wire waveguide and interferometer for cold atoms.
A versatile miniature de Broglie waveguide is formed by two parallel current-carrying wires in the presence of a uniform bias field. We derive a variety of analytical expressions to describe the guide and present a quantum theory to show that it offers a remarkable range of possibilities for atom manipulation on the submicron scale. These include controlled and coherent splitting of the wave fu...
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ژورنال
عنوان ژورنال: Applied Physics B
سال: 2017
ISSN: 0946-2171,1432-0649
DOI: 10.1007/s00340-017-6655-5