Electrodynamic Modeling of Quantum Dot Luminescence in Plasmonic Metamaterials

Fang, Ming; Huang, Zhixiang; Wu, Xianliang

doi:10.1021/acsphotonics.5b00499

Cited by 21 publications

(8 citation statements)

References 36 publications

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“…Since then, the modified SE rate has been observed in various photonic structures, such as microcavities 9 , wisperirng guided cavities 10 , 11 , photonic crystals 12 , 13 , and so on. In recent years, large enhancement of SE have also been reported in theoretically and experimental studies of plasmonic metamaterials 14 , 15 and plasmonic nanostructures 16 – 23 ; sepcifically, in gap surface plasmon (GSP) structures, the emission rate can exceed 1000 γ 0 , where γ 0 is the SE rate in vacuum, due to the presence of ultrastrong hotspots 18 – 23 . It is important to note here that these plasmon nanostructures are passive; once fabricated, they do not allow tunability demanded by state-of-the-art nanophotonic devices.…”

Section: Introductionmentioning

confidence: 95%

High-contrast switching and high-efficiency extracting for spontaneous emission based on tunable gap surface plasmon

Ren

Duan

et al. 2018

Sci Rep

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Controlling spontaneous emission at optical scale lies in the heart of ultracompact quantum photonic devices, such as on-chip single photon sources, nanolasers and nanophotonic detectors. However, achiving a large modulation of fluorescence intensity and guiding the emitted photons into low-loss nanophotonic structures remain rather challenging issue. Here, using the liquid crystal-tuned gap surface plasmon, we theoretically demonstrate both a high-contrast switching of the spontaneous emission and high-efficiency extraction of the photons with a specially-designed tunable surface plasmon nanostructures. Through varying the refractive index of liquid crystal, the local electromagnetic field of the gap surface plasmon can be greatly modulated, thereby leading to the swithching of the spontaneous emission of the emitter placed at the nanoscale gap. By optimizing the material and geometrical parameters, the total decay rate can be changed from 103γ0 to 8750γ0, [γ0 is the spontaneous emission rate in vacuum] with the contrast ratio of 85. Further more, in the design also enables propagation of the emitted photons along the low-loss phase-matched nanofibers with a collection efficiency of more than 40%. The proposal provides a novel mechanism for simultaneously switching and extracting the spontaneous emitted photons in hybrid photonic nanostructures, propelling the implementation in on-chip tunable quantum devices.

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Section: Introductionmentioning

confidence: 95%

High-contrast switching and high-efficiency extracting for spontaneous emission based on tunable gap surface plasmon

Ren

Duan

et al. 2018

Sci Rep

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“…Considering a more realistic case, the synchronous of the oscillations and the directionality are limited by the finite size of the metaruface and the pump source [34]. To determine the dimensions of the proposed nanoemitter and to explore the properties of the resonance modes, we employ the FDTD method [40][41][42] to simulate the spectra of the metasurface and grating under normal excitation by a transverse electric (y-polarized) wave. For the grating reflector with periodicity D = 600 nm, the electric dipole mode can be excited and can achieve ~100% around the resonant peak as shown in Fig.…”

Section: Simulation Detailsmentioning

confidence: 99%

Compact Unidirectional Laser Based on All-Dielectric Metasurface With High Quality Factor

Fang

Huang

2021

IEEE Photonics J.

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“…Both nonlocal and nonlinear effects can be considered using the self-consistent formulations. The multiphysics equations can be numerically solved by employing the FDTD method [23][24][25][26][27], which has been extended to model nonlinear and nonlocal effects in dispersive media.…”

Section: Electromagnetic-hydrodynamic Modelmentioning

confidence: 99%

FULL HYDRODYNAMIC MODEL OF NONLINEAR ELECTROMAGNETIC RESPONSE IN METALLIC METAMATERIALS (Invited Paper)

Fang¹,

Huang²,

Sha³

et al. 2016

PIER

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Abstract-Applications of metallic metamaterials have generated significant interest in recent years. Electromagnetic behavior of metamaterials in the optical range is usually characterized by a locallinear response. In this article, we develop a finite-difference time-domain (FDTD) solution of the hydrodynamic model that describes a free electron gas in metals. Extending beyond the locallinear response, the hydrodynamic model enables numerical investigation of nonlocal and nonlinear interactions between electromagnetic waves and metallic metamaterials. By explicitly imposing the current continuity constraint, the proposed model is solved in a self-consistent manner. Charge, energy and angular momentum conservation laws of high-order harmonic generation have been demonstrated for the first time by the Maxwell-hydrodynamic FDTD model. The model yields nonlinear optical responses for complex metallic metamaterials irradiated by a variety of waveforms. Consequently, the multiphysics model opens up unique opportunities for characterizing and designing nonlinear nanodevices.

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Electrodynamic Modeling of Quantum Dot Luminescence in Plasmonic Metamaterials

Cited by 21 publications

References 36 publications

High-contrast switching and high-efficiency extracting for spontaneous emission based on tunable gap surface plasmon

High-contrast switching and high-efficiency extracting for spontaneous emission based on tunable gap surface plasmon

Compact Unidirectional Laser Based on All-Dielectric Metasurface With High Quality Factor

FULL HYDRODYNAMIC MODEL OF NONLINEAR ELECTROMAGNETIC RESPONSE IN METALLIC METAMATERIALS (Invited Paper)

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