Multi-mode Plasmonically Induced Transparency in Dual Coupled Graphene-Integrated Ring Resonators

Xia, Xiushan; Wang, Jicheng; Feng, Zhaochi; Hu, Zheng; Liu, Cheng; Yan, Xin; Yuan, Lin

doi:10.1007/s11468-015-9955-9

Cited by 24 publications

(8 citation statements)

References 32 publications

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“…In Figure b,

T

behaves like the one in Figure a but with double resonance peaks; the separation between the peak doublet increases also with energy. Such resonance peaks can easily be explained by the doubling of the resonator model of Fabry–Perot in graphene . The two barrier types (single and double) have no effect on the width of the transmission gaps between transmission peaks.…”

Section: Resultsmentioning

confidence: 99%

Tunneling through Double Electrostatic Barriers in Strained Graphene

Choubabi

Jellal

Kamal

et al. 2019

Physica Status Solidi (b)

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Herein, the electronic structure of Dirac fermions scattered by double barrier potential in graphene under strain effect is studied. It is shown that traction and compression strains can be used to generate fermion beam collimation, 1D transport channels, surface states, and confinement. The corresponding transmission probability and conductance at zero temperature are calculated and their numerical computations are performed taking into account various alterations of physical parameters, enabling the analysis of some important features of the system. It is shown that the transmissions satisfy three symmetry relations depending on the incident angle and strain parameters, while the conductance is reduced compared to that of the strained single barrier.

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“…In Figure b,

T

Section: Resultsmentioning

confidence: 99%

Tunneling through Double Electrostatic Barriers in Strained Graphene

Choubabi

Jellal

Kamal

et al. 2019

Physica Status Solidi (b)

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“…It is widely recognized that the round trip phase of the Fabry-Perot resonator is controlled by the distance between the two mirrors [28]. Figure 3a shows that multiple PITs transmission spectrum versus different distance d between the radiative resonators.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…In 2014, Yang et al observed that a shift of 45 nm in the central wavelengths of triple optical channels was obtained when the plasmonic resonators were covered by a PMMA layer based on the thermo-optic effect [22]. Within this framework, we have previously shown that it is possible to achieve dynamically tunable single [24] or multiple [25] PITs in the visible and near-infrared range based on the temporal coupled mode theory (CMT) and bright-dark mode coupling mechanism [26][27][28]. However, up to now, few achievements have been made in actively tunable multichannel filter at optical communication range.…”

Section: Introductionmentioning

confidence: 99%

Dynamically Tunable by Kerr Effect Multichannel Filter Based on Plasmon Induced Transparencies at Optical Communication Range

Han

Wang

et al. 2015

Plasmonics

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Dynamically tunable multichannel filter based on plasmon-induced transparencies (PITs) is proposed in a plasmonic waveguide side-coupled to slot and rectangle resonators system at optical communication range. The slot and rectangle resonators in this system can be regarded as radiative or dark resonators as same as the radiative or dark elements in the metamaterial structure with the help of the evanescent coupling. The multiple PIT responses which can enable the realization of nanoscale filter with four channels are originated from the direct near-field coupling and indirect phase couple through a plasmonic waveguide simultaneously. Moreover, the magnitudes and bandwidths of the filter can be efficiently tuned by controlling of the geometric parameters such as the coupling distances and the pump light-induced refractive index change of the Kerr material which is embedded into the metal-dielectric-metal waveguide between the radiative resonators.

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“…Particularly, the surface conductivity of graphene can be dynamically tuned by chemical potential via external gate voltage or chemical doping [ 24 , 25 ], which makes graphene to be a promising candidate for designing tunable PIT while the geometrical parameters are fixed. Because of these extraordinary features compared to those of conventional noble metals, a wide range of researches have been done to realize graphene-based PIT, such as PIT phenomena in graphene ring resonator-coupled graphene waveguide [ 26 , 27 ] and PIT effects in a graphene-based nanoribbon waveguide coupled with graphene rectangular resonator structure [ 28 , 29 ]. Sun et al studied the periodically patterned graphene double-layer structure separated by a dielectric layer in the terahertz frequency range, where the multispectral PIT responses have been achieved [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Dynamically Tunable Plasmon-Induced Transparency in On-chip Graphene-Based Asymmetrical Nanocavity-Coupled Waveguide System

Qiu

Lin

et al. 2017

Nanoscale Res Lett

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A graphene-based on-chip plasmonic nanostructure composed of a plasmonic bus waveguide side-coupled with a U-shaped and a rectangular nanocavities has been proposed and modeled by using the finite element method in this paper. The dynamic tunability of the plasmon-induced transparency (PIT) windows has been investigated. The results reveal that the PIT effects can be tuned via modifying the chemical potential of the nanocavities and plasmonic bus waveguide or by varying the geometrical parameters including the location and width of the rectangular nanocavity. Further, the proposed plasmonic nanostructure can be used as a plasmonic refractive index sensor with a sensing sensibility of 333.3 nm/refractive index unit (RIU) at the the PIT transmission peak. Slow light effect is also realized in the PIT system. The proposed nanostructure may pave a new way towards the realization of graphene-based on-chip integrated nanophotonic devices.

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Multi-mode Plasmonically Induced Transparency in Dual Coupled Graphene-Integrated Ring Resonators

Cited by 24 publications

References 32 publications

Tunneling through Double Electrostatic Barriers in Strained Graphene

Tunneling through Double Electrostatic Barriers in Strained Graphene

Dynamically Tunable by Kerr Effect Multichannel Filter Based on Plasmon Induced Transparencies at Optical Communication Range

Dynamically Tunable Plasmon-Induced Transparency in On-chip Graphene-Based Asymmetrical Nanocavity-Coupled Waveguide System

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