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Proceedings Paper

Nonlinear photon-atom coupling in free space
Author(s): Matthias Steiner; Yue-Sum Chin; Christian Kurtsiefer
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Paper Abstract

We investigate alternative focusing geometries to couple near-resonant light onto a single neutral atom. In particular, we show significant light-atom interaction using the ‘4Pi-microscopy’ configuration. Performing a transmission experiment, we find a resonant extinction of 36.6(3)%. Furthermore, photon anti-bunching in the second-order correlation function of the transmitted light demonstrates nonlinear light-atom interaction at the level of single photons. Our results indicate that free-space focusing provides an alternative route to realise nonlinear optics with single photons.

Paper Details

Date Published: 21 May 2018
PDF: 7 pages
Proc. SPIE 10674, Quantum Technologies 2018, 106740V (21 May 2018); doi: 10.1117/12.2305887
Show Author Affiliations
Matthias Steiner, National Univ. of Singapore (Singapore)
Yue-Sum Chin, National Univ. of Singapore (Singapore)
Christian Kurtsiefer, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 10674:
Quantum Technologies 2018
Jürgen Stuhler; Andrew J. Shields; Miles J. Padgett, Editor(s)

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