Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating

Song, Ci; Xia, Xiushan; Hu, Zheng-Da; Liang, Youjian; Wang, Jicheng

doi:10.1186/s11671-016-1633-0

Cited by 20 publications

(9 citation statements)

References 40 publications

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“…A fascinatingly well-behaved independence on grating thickness has been revealed. Usually, the spectral response of grating-based devices is highly dependent on the structural parameters [46]. It is difficult to fabricate an ideal structure with the same parameters as the designed one.…”

Section: Reststrahlen Band Defined Bymentioning

confidence: 99%

Excitation of surface phonon polariton modes in gold gratings with silicon carbide substrate and their potential sensing applications

Zheng

Zou

et al. 2017

Applied Surface Science

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We demonstrate the excitation of surface phonon polaritons (SPhPs) in the mid-infrared (mid-IR) Reststrahlen band (10.288 µm-12.563µm) on patterned surfaces with silicon carbide (SiC) substrate and gold (Au) gratings. The very large negative permittivity of Au limits its applications in the mid-IR range, to couple incident light to SPhPs modes, their momentum mismatch can be compensated by patterning Au grating onto the surface of SiC substrate. Samples were fabricated and characterized experimentally by the Fourier transform infrared reflection (FTIR). The optical properties were also simulated by the rigorous coupled wave analysis (RCWA) method. Reflection dips are observed for light polarized vertical to the grating lines (TM-polarized), which are attributed to the coupling of electromagnetic (EM) waves into the SPhP modes. In addition, we present small-volume index sensing with analyte specificity based on mid-IR SPhPs in the fabricated configuration.

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Section: Reststrahlen Band Defined Bymentioning

confidence: 99%

Excitation of surface phonon polariton modes in gold gratings with silicon carbide substrate and their potential sensing applications

Zheng

Zou

et al. 2017

Applied Surface Science

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“…In the literature, there are some reports on MIM plasmonic waveguides and graphene based Bragg reflectors, but they offer poor performance [12][13][14][15] and the explanation is as follows. The MIM based 2D Bragg grating structures have been reported in [12][13][14], which are not realistic as thickness is not finite.…”

Section: Introductionmentioning

confidence: 99%

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Chitimireddy

Sharma

Vishwakarma

2018

Micro & Nano Letters

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This is the first report on 3D sinusoidal Bragg grating structure based on hybrid metal insulator metal (HMIM) plasmonic waveguide. The proposed structure has a gradual change in the refractive index rather than an abrupt change providing excellent filtering characteristics. The device is studied at an operating wavelength of 1.55 μm. The results are based on numerical simulations performed using the software CST microwave studio suite. The transmission characteristics show more than 80% transmission in the passband and near zero transmission in the rejection band. The proposed structure reduces the scattering losses and a wide bandgap of 0.387 μm is achieved. The proposed structure has a track length of 3.784 μm for 11 cells, which is very less compared to previous reports allowing large-scale integration of photonic devices. A microcavity is also formed and its resonance is investigated by introducing a defect length of 0.217 μm in the periodic structure. A peak transmission of 50% and a narrow resonance bandwidth of 0.029 μm are achieved at 1.55 μm resonance wavelength. The quality factor which defines the energy stored in the cavity is Q = 53.

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“…In particular, by applying extra gate voltage, magnetic fields, and chemical doping, the surface conductivity of graphene can be changed, which gives an increasing development on tunable plasmonic devices [21–24]. Considering the unique properties, graphene can also support propagation of SPPs, which are polariton modes of photon and electron density waves along a conductor and dielectric interface.…”

Section: Introductionmentioning

confidence: 99%

Peak modulation in multicavity-coupled graphene-based waveguide system

Wang

Shao

et al. 2017

Nanoscale Res Lett

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Plasmonically induced transparency (PIT) in a multicavity-coupled graphene-based waveguide system is investigated theoretically and numerically. By using the finite element method (FEM), the multiple mode effect can be achieved, and blue shift is exhibited by tunable altering the chemical potential of the monolayer graphene. We find that the increasing number of the graphene rectangle cavity (GRC) achieves the multiple PIT peaks. In addition, we find that the PIT peaks reduce to just one when the distance between the third cavity and the second one is 100 nm. Easily to be experimentally fabricated, this graphene-based waveguide system has many potential applications for the advancement of 3D ultra-compact, high-performance, and dynamical modulation plasmonic devices.

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Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating

Cited by 20 publications

References 40 publications

Excitation of surface phonon polariton modes in gold gratings with silicon carbide substrate and their potential sensing applications

Excitation of surface phonon polariton modes in gold gratings with silicon carbide substrate and their potential sensing applications

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Peak modulation in multicavity-coupled graphene-based waveguide system

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