Talbot-vonLau atom interferometry with cold slow potassium

Journal Article · Fri Apr 01 00:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.R2213· OSTI ID:5020724

Clauser, J F; Li, S ^[1]

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1. 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), Vol. 49:4; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
INTERFEROMETRY
ATOMS
POTASSIUM
BEAMS
DE BROGLIE WAVELENGTH
DIFFRACTION GRATINGS
TRANSMISSION
ALKALI METALS
ELEMENTS
GRATINGS
METALS
661100* - Classical & Quantum Mechanics- (1992-)
664200 - Spectra of Atoms & Molecules & their Interactions with Photons- (1992-)