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Proceedings Paper

OPO-based narrow-band single-photon source for efficient coupling to quantum memories
Author(s): Matthias Scholz; Lars Koch; Oliver Benson
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Paper Abstract

Narrow-band single photons represent an important resource for quantum memories due to their efficient interaction with atomic resonances. In this paper, we report on the generation of photons with 3 MHz linewidth by cavity-enhanced parametric down-conversion and demonstrate direct proof of their single-photon character by detection of heralding idler photons. Compared to a Poissonian source, a suppression of higher-order photon numbers by nearly two orders of magnitude could be achieved. Moreover, the brightness of our source exceeds previous realizations by more than a factor of 100.

Paper Details

Date Published: 24 February 2009
PDF: 12 pages
Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970Y (24 February 2009); doi: 10.1117/12.809149
Show Author Affiliations
Matthias Scholz, Humboldt-Univ. zu Berlin (Germany)
Lars Koch, Humboldt-Univ. zu Berlin (Germany)
Oliver Benson, Humboldt-Univ. zu Berlin (Germany)


Published in SPIE Proceedings Vol. 7197:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
Peter E. Powers, Editor(s)

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