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Integrated nanoplasmonic quantum interfaces for room-temperature single-photon sources

Author(s)
Chang, Darrick; Englund, Dirk; Peyskens, Frederic Olivier
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Abstract
We describe a general analytical framework of a nanoplasmonic cavity-emitter system interacting with a dielectric photonic waveguide. Taking into account emitter quenching and dephasing, our model directly reveals the single-photon extraction efficiency η as well as the indistinguishability I of photons coupled into the waveguide mode. Rather than minimizing the cavity modal volume, our analysis predicts an optimum modal volume to maximize η that balances waveguide coupling and spontaneous emission rate enhancement. Surprisingly, our model predicts that near-unity indistinguishability is possible, but this requires a much smaller modal volume, implying a fundamental performance trade-off between high η and I at room temperature. Finally, we show that maximizing ηI requires that the system has to be driven in the weak coupling regime because quenching effects and decreased waveguide coupling drastically reduce η in the strong coupling regime.
Date issued
2017-12
URI
http://hdl.handle.net/1721.1/114397
Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Physical Review B
Publisher
American Physical Society
Citation
Peyskens, Frédéric et al. "Integrated nanoplasmonic quantum interfaces for room-temperature single-photon sources." Physical Review B 96, 3 (December 2017): 235151 © 2017 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969

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