Partially Nondestructive Continuous Detection of Individual Traveling Optical Photons
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PhysRevLett.116.033602.pdf
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Author(s) • • • •
Hosseini, Mahdi
Duan, Yiheng
Chen, Wenlan
Beck, Kristin Marie
Vuletic, Vladan
Date Issued
January 2016
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Hosseini, Mahdi, Kristin M. Beck, Yiheng Duan, Wenlan Chen, and Vladan Vuletic. "Partially Nondestructive Continuous Detection of Individual Traveling Optical Photons." Phys. Rev. Lett. 116, 033602 (January 2016). © 2016 American Physical Society
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Final published version
Abstract
We report the continuous and partially nondestructive measurement of optical photons. For a weak light pulse traveling through a slow-light optical medium (signal), the associated atomic-excitation component is detected by another light beam (probe) with the aid of an optical cavity. We observe strong correlations of g[(2) over sp] = 4.4(5) between the transmitted signal and probe photons. The observed (intrinsic) conditional nondestructive quantum efficiency ranges between 13% and 1% (65% and 5%) for a signal transmission range of 2% to 35%, at a typical time resolution of 2.5 μs. The maximal observed (intrinsic) device nondestructive quantum efficiency, defined as the product of the conditional nondestructive quantum efficiency and the signal transmission, is 0.5% (2.4%). The normalized cross-correlation function violates the Cauchy-Schwarz inequality, confirming the nonclassical character of the correlations.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.116.033602