Talbot-vonLau atom interferometry with cold slow potassium
Journal Article
·
· Physical Review A; (United States)
- Physics Department, University of California-Berkeley, Berkeley, California 94720 (United States)
A dc hot thermal and an ac-modulated cold slow potassium beam copropagate and pass through an atom de Broglie--wave interferometer, consisting of a sequence of three microfabricated diffraction gratings. Talbot-vonLau interference fringes are formed and sensed by measuring transmission with a hot wire as a function of grating position. The hot beam produces diffraction-limited shadow Moire fringes, while the longer de Broglie wavelength slow beam produces interference fringes with high visibility at the fifth and sixth spatial harmonics of the shadow Moire fringes.
- OSTI ID:
- 5020724
- Journal Information:
- Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:4; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
661100* -- Classical & Quantum Mechanics-- (1992-)
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOMS
BEAMS
DE BROGLIE WAVELENGTH
DIFFRACTION GRATINGS
ELEMENTS
GRATINGS
INTERFEROMETRY
METALS
POTASSIUM
TRANSMISSION
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOMS
BEAMS
DE BROGLIE WAVELENGTH
DIFFRACTION GRATINGS
ELEMENTS
GRATINGS
INTERFEROMETRY
METALS
POTASSIUM
TRANSMISSION