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Journal articles
Observation of backaction-evading measurement of an optical intensity in a three-level atomic nonlinear system
Abstract : Backaction-evading measurement of an optical intensity has been observed, using a three-level system in a sodium atomic beam as a nonlinear medium. The principle of this experiment is to use the cross-phase-modulation effect, which in principle allows one to read nondestructively the quantum intensity fluctuations of the ''signal'' beam when detecting the phase fluctuations of the ''meter'' beam. Using a cavity-enhancement scheme, the quantum noise measured when recombining the signal and meter photocurrents is 0.8 dB below the shot-noise level.
Cited literature [9 references]
https://hal-iogs.archives-ouvertes.fr/hal-00559097
Contributor : Philippe Grangier <>
Submitted on : Monday, May 23, 2016 - 2:29:00 PM
Last modification on : Tuesday, October 20, 2020 - 5:28:02 PM
Contributor : Philippe Grangier <>
Submitted on : Monday, May 23, 2016 - 2:29:00 PM
Last modification on : Tuesday, October 20, 2020 - 5:28:02 PM
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