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Physics > Optics

arXiv:1609.02900 (physics)
[Submitted on 9 Sep 2016 (v1), last revised 24 Oct 2016 (this version, v2)]

Title:Controlling collective spontaneous emission with plasmonic waveguides

Authors:Ying Li, Christos Argyropoulos
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Abstract:We demonstrate a plasmonic route to control the collective spontaneous emission of two-level quantum emitters. Superradiance and subradiance effects are observed over distances comparable to the operating wavelength inside plasmonic nanochannels. These plasmonic waveguides can provide an effective epsilon-near-zero operation in their cut-off frequency and Fabry-Perot resonances at higher frequencies. The related plasmonic resonant modes are found to efficiently enhance the constructive (superradiance) or destructive (subradiance) interference between different quantum emitters located inside the waveguides. By increasing the number of emitters located in the elongated plasmonic channel, the superradiance effect is enhanced at the epsilon-near-zero operation, leading to a strong coherent increase in the collective spontaneous emission rate. In addition, the separation distance between neighboring emitters and their emission wavelengths can be changed to dynamically control the collective emission properties of the plasmonic system. It is envisioned that the dynamic modification between quantum superradiant and subradiant modes will find applications in quantum entanglement of qubits, low-threshold nanolasers and efficient sensors.
Subjects: Optics (physics.optics)
Cite as: arXiv:1609.02900 [physics.optics]
  (or arXiv:1609.02900v2 [physics.optics] for this version)
  https://doi.org/10.48550/arXiv.1609.02900
Journal reference: Optics Express, vol. 24, No. 23, pp. 26696-26708, 2016
Related DOI: https://doi.org/10.1364/OE.24.026696

Submission history

From: Christos Argyropoulos Prof [view email]
[v1] Fri, 9 Sep 2016 19:31:14 UTC (876 KB)
[v2] Mon, 24 Oct 2016 20:33:20 UTC (764 KB)
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