TY - JOUR
T1 - Observation of coherence between two independent atomic ensembles by Raman scattering
AU - Chen, Li-Qing
AU - Zhang, Guo-Wan
AU - Bian, Cheng-Ling
AU - Ou, Z. Y.
AU - Zhang, Weiping
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2011/7/15
Y1 - 2011/7/15
N2 - By using spontaneous Raman processes in the high-gain regime, we create instantaneous coherence between two independent atomic ensembles. The coherence is confirmed by the observation of temporal beating between the two subsequent readout fields converted from the atomic excitations through another enhanced Raman process. The beat frequency is found to be a result of an AC Stark frequency shift effect. We find that, due to the spontaneous nature of the process, the phases of the two ensembles change from one realization to another even though there is good coherence for a single realization. © 2011 Optical Society of America.
AB - By using spontaneous Raman processes in the high-gain regime, we create instantaneous coherence between two independent atomic ensembles. The coherence is confirmed by the observation of temporal beating between the two subsequent readout fields converted from the atomic excitations through another enhanced Raman process. The beat frequency is found to be a result of an AC Stark frequency shift effect. We find that, due to the spontaneous nature of the process, the phases of the two ensembles change from one realization to another even though there is good coherence for a single realization. © 2011 Optical Society of America.
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U2 - 10.1364/OL.36.002740
DO - 10.1364/OL.36.002740
M3 - RGC 21 - Publication in refereed journal
SN - 0146-9592
VL - 36
SP - 2740
EP - 2742
JO - Optics Letters
JF - Optics Letters
IS - 14
ER -