Single/Dual Fano Resonance Based on Plasmonic Metal-Dielectric-Metal Waveguide

Wen, Kunhua; Hu, Yihua; Chen, Li; Zhou, Jinyun; Liu, Liang; Meng, Ziming

doi:10.1007/s11468-015-0056-6

Cited by 66 publications

(25 citation statements)

References 31 publications

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“…The simulation results are plotted in Figure 3a. Figure 3a clearly shows that, when r = r ’ = 225 nm, sharp and asymmetrical spectral profiles, which are regarded as Fano resonances [32,33], can be obtained. Here, Fano resonances result from the interference of the broad spectrum and the discrete resonance, which are caused by the baffle and the ring cavities, respectively.…”

Section: Resultsmentioning

confidence: 99%

Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators

Liu

Wang

Feng

et al. 2017

Sensors

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A wavelength band-pass filter with asymmetric dual circular ring resonators in a metal-insulator-metal (MIM) structure is proposed and numerically simulated. For the interaction of the local discrete state and the continuous spectrum caused by the side-coupled resonators and the baffle, respectively, the transmission spectrum exhibits a sharp and asymmetric profile. By adjusting the radius and material imbedded in one ring cavity, the off-to-on plasmon-induced absorption (PIA) optical response can be tunable achieved. In addition, the structure can be easily extended to other similar compact structures to realize the filtering task. Our structures have important potential applications for filters and sensors at visible and near-infrared regions.

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Section: Resultsmentioning

confidence: 99%

Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators

Liu

Wang

Feng

et al. 2017

Sensors

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show abstract

“…Due to the interference of continuous(bright) modes and discrete(dark) modes, Fano resonance exhibits the sharp asymmetric line shape characteristic [7], which has attracted more and more attention. The common design methods of these structures can be generally divided into three categories -First is that the input and output waveguides are direct coupled to both ends of the resonator [3,[8][9][10], second is that the resonators are side coupled to one waveguide between the input and output ports [11][12][13][14][15], and third is that the input waveguide, output waveguide and resonators are all coupled through a gap [2,16,17]. The common resonators are rectangular [6], ring [14], triangular [9], disk [18,19], hexagonal [20] and other special shapes.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Nanosensor Based on Independently Tunable Multiple Fano Resonances

Cheng¹,

Wang²,

He³

et al. 2019

Preprint

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A novel refractive index nanosensor with compound structures is proposed in this paper. It consists of three different kinds of resonators and two stubs which are side-coupled to a metal-dielectric-metal (MDM) waveguide. By utilizing numerical investigation with the finite element method (FEM), the simulation results show that the transmission spectrum of the nanosensor has as much as five sharp peaks of Fano resonance. Due to their different resonance mechanisms, each peak of resonances can be independently tuned by adjusting the corresponding parameters of the structure. In addition, the sensitivity of the nanosensor is up to , and it also has an excellent performance with a high group refractive index of . For the sake of different functions to practical applications, a legitimate combination of various different components, such as T-shaped, ring, and split-ring cavities, has been proposed to make the nanosensor dramatically reduce its dimensions without sacrificing performance. These designing concepts pave a new way to construct such compact on-chip plasmonic structures, and it can be widely applied to nanosensors, optical splitters, filters, optical switches, nonlinear photonic and slow-light devices.

show abstract

“…Due to the interference of continuous (bright) modes and discrete (dark) modes, the Fano resonance exhibits a sharp asymmetric line shape characteristic [7], which has attracted more and more attention. The common design methods of these structures can be generally divided into three categories -First is that the input and output waveguides are direct coupled to both ends of the resonator [3,[8][9][10], second is that the resonators are side-coupled to one waveguide between the input and output ports [11][12][13][14][15], and third is that the input waveguide, output waveguide and resonators are all coupled through a gap [2,16,17]. The common resonators are rectangular [6], ring [14], triangular [9], disk [18,19], hexagonal [20] and other special shapes.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic nanosensor based on multiple independently tunable Fano resonances

Cheng¹,

Wang²,

He³

et al. 2019

Beilstein J. Nanotechnol.

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A novel refractive index nanosensor with compound structures is proposed in this paper. It consists of three different kinds of resonators and two stubs which are side-coupled to a metal–dielectric–metal (MDM) waveguide. By utilizing numerical investigation with the finite element method (FEM), the simulation results show that the transmission spectrum of the nanosensor has as many as five sharp Fano resonance peaks. Due to their different resonance mechanisms, each resonance peak can be independently tuned by adjusting the corresponding parameters of the structure. In addition, the sensitivity of the nanosensor is found to be up to 1900 nm/RIU. For practical application, a legitimate combination of various different components, such as T-shaped, ring, and split-ring cavities, has been proposed which dramatically reduces the nanosensor dimensions without sacrificing performance. These design concepts pave the way for the construction of compact on-chip plasmonic structures, which can be widely applied to nanosensors, optical splitters, filters, optical switches, nonlinear photonic and slow-light devices.

show abstract

Single/Dual Fano Resonance Based on Plasmonic Metal-Dielectric-Metal Waveguide

Cited by 66 publications

References 31 publications

Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators

Tunable Plasmonic Band-Pass Filter with Dual Side-Coupled Circular Ring Resonators

Plasmonic Nanosensor Based on Independently Tunable Multiple Fano Resonances

Plasmonic nanosensor based on multiple independently tunable Fano resonances

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