Journal
PHYSICAL REVIEW A
Volume 86, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.011801
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Funding
- Australian Research Council
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We suggest a source of polarization-entangled photon pairs based on a cross-shaped plasmonic nanoantenna driven by a single quantum dot. The integration of the nanoantenna with a metal mirror overcomes the fundamental tradeoff between the spontaneous emission (SE) enhancement and the extraction efficiency typical of microcavity- and nanowire-based architectures. With a very high extraction efficiency of entangled photons (approximate to 90%) at 1.55 mu m and large SE enhancement (approximate to 90) over a broad 330-nm spectral range, the proposed design will pave the way toward reliable integrated sources of nonclassical light.
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