CST – Computer Simulation Technology

Plasmonic nanoantennas for efficient control of polarization-entangled photon pairs
Ivan S. Maksymov, Andrey E. Miroshnichenko, Yuri S. Kivshar
Physical Review
Volume: 86, Issue: 1, 16 May 2012
011801-1 - 011801-5
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 ametal mirror overcomes the fundamental tradeoff between the spontaneous emission (SE) enhancement and the extraction efficiency typical of microcavityand nanowire-based architectures.With a very high extraction efficiency of entangled photons (˜90%) at 1.55 µm and large SE enhancement (˜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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