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EXPERIMENTAL REALIZATION OF A GRAVITATIONAL CAVITY FOR NEUTRAL ATOMS

Abstract:
A parabolic electromagnetic reflector for slow cesium atoms is studied experimentally. This atomic mirror consists of an evanescent wave on a curved glass surface. A cloud of cesium atoms, trapped and laser cooled in a magneto-optical trap, is released a few millimeters above the surface, falls onto the reflector and is subsequently detected by fluorescence. It was observed to rebound more than 8 times. The mirror size and the reflectivity were studied, and reasonable agreement with a simple theory obtained. With 800 mW of laser power and a mirror of 1 mm diameter, we observed up to 73% of the atoms returning after each bounce, the losses being mostly during the free flight between bounces.
Publication status:
Published

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Journal:
ANNALES DE PHYSIQUE More from this journal
Volume:
20
Issue:
2
Pages:
149-150
Publication date:
1995-04-01
Event title:
3rd Conference on Lasers and Quantum Optics (COLOQ 3)
ISSN:
0003-4169


Pubs id:
pubs:13490
UUID:
uuid:b366a4df-eeaf-430a-8183-e116e3a48a84
Local pid:
pubs:13490
Source identifiers:
13490
Deposit date:
2012-12-19

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