Journal
PHYSICAL REVIEW A
Volume 79, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.033815
Keywords
dispersion relations; excitons; nanophotonics; nanowires; photonic crystals; quantum dots; quantum entanglement; quantum optics; superradiance; surface plasmon resonance
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Funding
- National Science Council, Taiwan [NSC 96-2112-M009-021, 95-2112-M-006-031-MY3]
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We examine the spontaneous emission of a two-level emitter, quantum-dot exciton, into surface plasmons propagating on the surface of a cylindrical nanowire. The numerically obtained dispersion relations are found to influence the spontaneous emission rate strongly. At certain values of the exciton band gap, the emission rates can go to infinity due to the band-edge feature of the dispersion relations. Borrowing the idea from the photonic crystals, we model the quantum-dot exciton dynamics with a non-Markovian way and demonstrate that the decay can undergo an oscillatory behavior. In addition, we also show that the remote entangled states can be generated via super-radiance by using the one-dimensional propagating feature of the nanowire surface plasmons.
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