Plasmonic (thermal) electromagnetically induced transparency in metallic nanoparticle–quantum dot hybrid systems

Sadeghi, Seyed M.; Deng, Li; X, Li; Huang, WP

doi:10.1088/0957-4484/20/36/365401

Cited by 65 publications

(49 citation statements)

References 30 publications

(59 reference statements)

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“…These parameters are comparable to those commonly found in the literature for QDs. [2][3][4] Here, the transition energies in the QD are taken to lie near the plasmon resonancehω x sp ashω 12 = 0.8046 eV and hω 13 = 0.8036 eV. The combined QD-graphene nanodisk hybrid is contained within a photonic crystal made of polystyrene spheres arranged periodically in air.…”

Section: Resultsmentioning

confidence: 99%

“…A significant amount of research on nanocomposites has been devoted to the study of exciton-plasmon interactions in metal-semiconductor nanostructures, which offer a wide range of opportunities to control light-matter interactions and electromagnetic energy flows on nanometer length scales. [1][2][3][4][5][6] Strong exciton-surface plasmon coupling in semiconductor quantum-dot (QD) metal nanoparticle systems could lead to efficient transmission of quantum information between qubits for applications in quantum computing and communication. 2 These nanostructures also have applications in biophotonics and sensing, where nonradiative energy transfer between a QD and metal nanoparticle can be used to detect biological molecules.…”

Section: Introductionmentioning

confidence: 99%

“…2 These nanostructures also have applications in biophotonics and sensing, where nonradiative energy transfer between a QD and metal nanoparticle can be used to detect biological molecules. 3 In this paper, we study theoretically the dipole-dipole interaction (DDI) and energy transfer between a quantum emitter and a graphene nanodisk. The quantum emitter can be a quantum dot, nanocrystal, or a chemical or biological molecule.…”

Section: Introductionmentioning

confidence: 99%

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Dipole-dipole interaction between a quantum dot and a graphene nanodisk

et al. 2012

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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 nanobiosensors, optical nanoswitches, and energy transfer devices.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dipole-dipole interaction between a quantum dot and a graphene nanodisk

et al. 2012

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“…Hybrid structures composed of molecular excitons or excitonic semiconductor quantum dots, coupled to metallic nanoparticles have been greatly interested and investigated in recent years, due to their potential applications in the development of functional materials, nanoscale optical devices, molecular sensors, and other applications in biophotonics and nanoplasmonics [1][2][3][4][5][6][7][8]. Novel materials can be assembled from excitonic and plasmonic NPs, joined with biolinkers [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Novel materials can be assembled from excitonic and plasmonic NPs, joined with biolinkers [4][5][6][7][8]. The metallic NP constituents in such hybrid nanostructures can support localized surface plasmon resonances, providing spatially confined, intensive electric fields on the surface of the NPs.…”

Section: Introductionmentioning

confidence: 99%

Coupled plasmon-exciton induced transparency and slow light in plexcitonic metamaterials

et al. 2012

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Classical analogues of the well-known effect of electromagnetically induced transparency (EIT) in quantum optics have been the subject of considerable research in recent years from microwave to optical frequencies, because of their potential applications in slow light devices, studying nonlinear effects in low-loss nanostructures, and development of low-loss metamaterials. A large variety of plasmonic structures has been proposed for producing classical EIT-like effects in different spectral ranges. The current approach for producing plasmon-induced transparency is usually based on precise design of plasmonic "molecules," which can provide specific interacting dark and bright plasmonic modes with Fano-type resonance couplings. In this paper, we show that classical interactions of coupled plasmonic and excitonic spherical nanoparticles (NPs) can result in much more effective transparency and slow light effects in metamaterials composed of such coupled NPs. To reveal more details of the wave-particle and particle-particle interactions, the electric field distribution and field lines of Poynting vector inside and around the NPs are calculated using the finite element method. Finally, using extended Maxwell Garnett theory, we study the coupled-NP-induced transparency and slow light effects in a metamaterial comprising random mixture of silver and copper chloride (CuCl) NPs, and more effectively in a metamaterial consisting of random distribution of coated NPs with CuCl cores and aluminum shells in the UV region.

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Fano resonances and slow light in a nanocavity assisted by metallic nanoparticles‐quantum dot system

Chen

Wang

et al. 2022

Int J of Quantum Chemistry

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Double Fano resonances in a nanocavity assisted by metallic nanoparticles (MNPs)‐quantum dot (QD) system are demonstrated theoretically. The nanocavity is assumed to couple with the QD and QD is assumed to locate in the plasmon field produced by two excited MNPs nearby. The nanocavity is driven by a control field and a probing field. Double Fano resonances can be manipulated by the system parameters such as frequency detuning and coupling strength among the nanocavity, the mechanical oscillator, MNPs and QD. Especially, we find the second Fano resonance appears due to the interaction between the nanocavity with the QD‐MNPs. We also discuss the transmission and group delay in the double Fano resonance transparency windows which show tunable fast and slow light for different probe frequency. Our results may provide possible applications in designing optical buffer, switching, and so forth.

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Plasmonic (thermal) electromagnetically induced transparency in metallic nanoparticle–quantum dot hybrid systems

Cited by 65 publications

References 30 publications

Dipole-dipole interaction between a quantum dot and a graphene nanodisk

Dipole-dipole interaction between a quantum dot and a graphene nanodisk

Coupled plasmon-exciton induced transparency and slow light in plexcitonic metamaterials

Fano resonances and slow light in a nanocavity assisted by metallic nanoparticles‐quantum dot system

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