Cavity QED with high-Q whispering gallery modes

Creators: Vernooy, D. W.; Furusawa, A.; Georgiades, N. Ph.; Ilchenko, V. S.; Kimble, H. J.

Abstract

We report measurements of cavity-QED effects for the radiative coupling of atoms in a dilute vapor to the external evanescent field of a whispering-gallery mode (WGM) in a fused silica microsphere. The high Q (5 x 10^(7)), small mode volume (10^(-8) cm^(3)), and unusual symmetry of the microcavity evanescent field enable velocity-selective interactions between fields with photon number of order unity in the WGM and (N) over bar(T) similar to 1 atoms in the surrounding vapor.

Additional Information

©1998 The American Physical Society. Received 18 December 1997. V.I. acknowledges fruitful discussions with J.-F. Roch. This work was supported by ONR Grant No. N00014-96-1-0580, the NSF, and DARPA via the QUIC Institute administered by ARO. D.W.V. acknowledges support from NSERC.

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