Measurment of the Van-der-Waals interaction between an atom and a cavity

Hinds, E.A.; Sandoghdar, Vahid; Sukenik, C.I.; Haroche, Serge

doi:10.1063/1.43778

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Measurment of the Van-der-Waals interaction between an atom and a cavity

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Hinds, E., Sandoghdar, V., Sukenik, C., & Haroche, S. (1993). Measurment of the Van-der-Waals interaction between an atom and a cavity. In ATOMIC PHYSICS 13 (pp. 276-286). WOODBURY: AIP PRESS.

Cite as: https://hdl.handle.net/21.11116/0000-0002-9C06-8

Abstract

We have measured the energy of interaction between a sodium atom and its electrical images in the walls of a micron‐sized cavity. The atoms are centrally located between two plane parallel gold mirrors whose separation is varied from 500 nm to 2400 nm. In the smallest cavities, the atoms are held near the center by means of a one‐dimensional optical dipole trap. Energy level shifts are measured directly by laser spectroscopy of the states nS with n in the range 10–13. This cavity QED study provides the first direct, quantitative test of the Lennard‐Jones–van der Waals interaction as a function of controlled atom‐surface separation and mean square electric dipole moment.