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8 May 2020 Absorption of a heralded single photon by a nitrogen-vacancy center in diamond (Conference Presentation)
Maria Gieysztor, Marta Misiaszek, Joscelyn van der Veen, Wojciech Gawlik, Fedor Jelezko, Piotr Leszek Kolenderski
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Proceedings Volume 11391, Quantum Information Science, Sensing, and Computation XII; 1139102 (2020) https://doi.org/10.1117/12.2557606
Event: SPIE Defense + Commercial Sensing, 2020, Online Only
Abstract
A simple, room-temperature, cavity- and vacuum-free interface for an efficient photon-matter interaction is implemented. In the experiment a heralded single photon generated by the process of spontaneous parametric down-conversion is absorbed by a single atom-like system, specifically a nitrogen-vacancy color center in diamond. Here phonon-assisted absorption solves the mismatch problem of a narrow absorption bandwidth in a typical atomic medium and broadband spectrum of quantum light. The source is tunable in the spectral range $452-575$ nm, which overlaps well with the absorption spectrum of nitrogen-vacancy centers. This can also be considered as a useful technique paving the way for development of novel quantum information processing and sensing applications.
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Maria Gieysztor, Marta Misiaszek, Joscelyn van der Veen, Wojciech Gawlik, Fedor Jelezko, and Piotr Leszek Kolenderski "Absorption of a heralded single photon by a nitrogen-vacancy center in diamond (Conference Presentation)", Proc. SPIE 11391, Quantum Information Science, Sensing, and Computation XII, 1139102 (8 May 2020); https://doi.org/10.1117/12.2557606
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KEYWORDS
Absorption
Diamond
Single photon
Color centers
Quantum information processing
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