Integrated nanoplasmonic quantum interfaces for room-temperature single-photon sources
Name
PhysRevB.96.235151.pdf
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314.3 KB
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Author(s)
Chang, Darrick
Englund, Dirk
Peyskens, Frederic Olivier
Date Issued
December 2017
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
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.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.96.235151
