Dipole-dipole interaction between a quantum dot and graphene nanodisk

Abstract

We study theoretically the dipole-dipole interaction and energy transfer in a hybrid system consisting of a quantum dot and graphene nanodisk embedded in a nonlinear photonic crystal. In our model a probe laser field is applied to measure the energy transfer between the quantum dot and graphene nanodisk while a control field manipulates the energy transfer process. These fields create excitons in the quantum dot and surface plasmon polaritons in the graphene nanodisk which interact via the dipole-dipole interaction. Here the nonlinear photonic crystal acts as a tunable photonic reservoir for the quantum dot, and is used to control the energy transfer. We have found that the spectrum of power absorption in the quantum dot has two peaks due to the creation of two dressed excitons in the presence of the dipole-dipole interaction. The energy transfer rate spectrum of the graphene nanodisk also has two peaks due to the absorption of these two dressed excitons. Additionally, energy transfer between the quantum dot and the graphene nanodisk can be switched on and off by applying a pump laser to the photonic crystal or by adjusting the strength of the dipole-dipole interaction. We show that the intensity and frequencies of the peaks in the energy transfer rate spectra can be modified by changing the number of graphene monolayers in the nanodisk or the separation between the quantum dot and graphene. Our results agree with existing experiments on a qualitative basis. The principle of our system can be employed to fabricate nano-biosensors, optical nano-switches, and energy transfer devices.

References in corpus (8)

• The electronic properties of graphene
• Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
• Graphene photodetectors for high-speed optical communications
• Entanglement of two qubits mediated by one-dimensional plasmonic waveguides
• Stimulated and spontaneous optical generation of electron spin coherence in charged GaAs quantum dots
• Coherent Population Trapping of an Electron Spin in a Single Negatively Charged Quantum Dot
• Nanoplasmonic Renormalization and Enhancement of Coulomb Interactions
• Energy transfer from an individual quantum dot to a carbon nanotube

Cited by in corpus (11)

• Plasmons in graphene: Recent progress and applications
• Control of fluorescence in quantum emitter and metallic nanoshell hybrids for medical applications
• Topologically protected strongly-correlated states of photons
• Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer
• Coupling of Plasmon Modes in Graphene Microstructures
• Light-matter interaction of a quantum emitter near a half-space graphene nanostructure
• Photon-Assisted Tunneling through Molecular Conduction Junctions with Graphene Electrodes
• Enhancing two-photon spontaneous emission in rare earths using graphene and graphene nanoribbons
• Analysis of optical near-field energy transfer by stochastic model unifying architectural dependencies
• On the surface plasmonic waves excited by a dipole above anisotropic and spatially dispersive two-dimensional surfaces of infinite extent in planarly layered media
• Stationary two-qubit entanglement mediated by one-dimensional plasmonic nanoarrays