30 August 2010 Impurities in diamond: a new revival for quantum optics
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Proceedings Volume 7815, Quantum Communications and Quantum Imaging VIII; 78150C (2010); doi: 10.1117/12.865609
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States
Abstract
Realization of novel quantum technologies requires a control over their fundamental constituent- a single photon emitter. In this work we will present a comparative study of single photon emitters based on color centers in diamond which deliver performance comparable with decoy state implementation with weak coherent sources, and are most suitable for practical applications. In particular we will present the photo-physical properties of a novel family of single photon emitters, originated from Cr impurities in the diamond lattice, which exhibit a typical emission lines in the range of 740-760 nm, and a count rate in the range of 0.8-3.2 106 counts/s. We will highlight future directions to optimize these sources and present simulations of their performance in practical devices.
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S. Castelletto, I. Aharonovich, C. H. Su, S. Prawer, "Impurities in diamond: a new revival for quantum optics", Proc. SPIE 7815, Quantum Communications and Quantum Imaging VIII, 78150C (30 August 2010); doi: 10.1117/12.865609; https://doi.org/10.1117/12.865609
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KEYWORDS
Chromium

Diamond

Quantum key distribution

Single photon

Quantum efficiency

Neodymium

Crystals

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