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Springer series in optical sciences/SPringer series in optical sciences

Optical Ramsey Fringes in Two-Photon Spectroscopy

M. M. Salour

Published Jan 1, 1977• 3 citations
Publisher
DOI
10.1007/978-3-540-35968-5_16

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Journal of the Physical Society of Japan•Sep 10, 2010•3 citations
Ramsey spectroscopy and geometric operations on the released sodium Bose–Einstein condensates consisting of 10 7 atoms were demonstrated using copropagating two-photon stimulated Raman pulses, which were resonant to the clock transition between the F =1, m F =0 and F =2, m F =0 states of sodium atoms. The Ramsey fringes with a visibility close to 1 were obtained for two Raman pulses separated by 10 ms. A relative frequency resolution of Ramsey resonance was 6×10 -10 and a phase uncertainty of fringes was 0.06 rad for single measurement. Using resonant laser-controlled Raman pulses, geometric operations for rotations of the two-level Bose–Einstein condensates around axes 2 and 3 on the Bloch sphere were also demonstrated with a relative phase uncertainty of 4%.