Ultra-Efficient Coupling of a Quantum Emitter to the Tunable Guided Plasmons of a Carbon Nanotube

Abstract

We show that a single quantum emitter can efficiently couple to the tunable plasmons of a highly doped single-wall carbon nanotube (SWCNT). Plasmons in these quasi-one-dimensional carbon structures exhibit deep subwavelength confinement that pushes the coupling efficiency close to 100% over a very broad spectral range. This phenomenon takes place for distances and tube diameters comprising the nanometer and micrometer scales. In particular, we find a beta factor ~1 for QEs placed 1-100 nm away from SWCNTs that are just a few nanometers in diameter, while the corresponding Purcell factor exceeds 10^6. Our finding not only holds great potential for waveguide QED, in which an efficient interaction between emitters and cavity modes is pivotal, but it also provides a way of realizing quantum strong coupling between several emitters mediated by SWCNT plasmons, which can be controlled through the large electro-optical tunability of these excitations.

6 pages, 4 figures, 40 references

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Cited by in corpus (16)

• Microwave photonics with superconducting quantum circuits
• Deterministic generation of arbitrary photonic states assisted by dissipation
• Universal Quantum Computation in Waveguide QED using Decoherence Free Subspaces
• Strong and broadly tunable plasmon resonances in thick films of aligned carbon nanotubes
• Quasi-Chiral Interactions between Quantum Emitters at the Nanoscale
• Coherent plasmon and phonon-plasmon resonances in carbon nanotubes
• Strong-field-driven dynamics and high-harmonic generation in interacting 1D systems
• Collective Excitations and Optical Response of Ultrathin Carbon Nanotube Films
• Finite-thickness effects in plasmonic films with periodic cylindrical anisotropy
• Graphene coated subwavelength wires: A theoretical investigation of emission and radiation properties
• Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections
• Enhanced energy transfer via graphene-coated wire surface plasmons
• Polaritons in two-dimensional parabolic waveguides
• Anisotropic Photon Emission Enhancement near Carbon Nanotube Metasurfaces
• Entangled two-plasmon generation in carbon nanotubes and graphene coated wires
• Nonreciprocal plasmons in one-dimensional carbon nanostructures