Plasmonic-induced transparency and unidirectional control based on the waveguide structure with quadrant ring resonators

Tang, Baojie; Wang, Jicheng; Xia, Xiushan; Liang, Xiuye; Song, Ci; Qu, Shinian

doi:10.7567/apex.8.032202

Cited by 38 publications

(14 citation statements)

References 26 publications

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“…where ε ∞ = 3.7 is the relative dielectric constant of the infinite frequency, ω p = 1.38 × 10 16 Hz the plasma frequency, γ = 2.73 × 10 13 Hz the electronic oscillation frequency, and ω the angular frequency of the incident light wave. The dispersion relation of the fundamental mode in MIM type plasmonic waveguide can be expressed by the following relationship [26][27][28]:…”

Section: Model and Theorymentioning

confidence: 99%

Investigation on Plasmon Induced Transparency and Its Application in an Mim Typecompound Plasmonic Waveguide

Tian¹,

Li²

2020

PIER C

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In this paper, the investigation about a metal-insulator-metal (MIM) compound plasmonic waveguide is reported, which possesses the transmission property of plasmon induced transparency (PIT) and exhibits the potential application of refractive index sensing. The waveguide structure consists of an MIM-type bus waveguide, a horizontally placed asymmetric H-type resonator (AHR), and a circular ring resonator (CRR). The AHR is directly coupled with the bus waveguide, while the CRR is directly coupled to the AHR, but is indirectly coupled to the bus waveguide. Due to the destructive interference between two different transmission paths, PIT effect can be observed in the transmission spectrum. The finite element method (FEM) is used to study the PIT effect in detail. The results show that the transmission characteristics can be flexibly adjusted by changing the geometric parameters of the structure, and the proposed waveguide structure has potential application prospects in the area of temperature and refractive index sensing with higher sensitivity, better figure of merit, and in the area of slow light photonic devices.

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Section: Model and Theorymentioning

confidence: 99%

Investigation on Plasmon Induced Transparency and Its Application in an Mim Typecompound Plasmonic Waveguide

Tian¹,

Li²

2020

PIER C

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“…Since d is much smaller than the incident wavelength λ, only the fundamental plasmonic mode TM 0 could exist in the waveguide. The propagation constant β of SPPs is determined by the following equation 24,25 :…”

Section: Model and Theoretical Analysismentioning

confidence: 99%

Tunable multimode electromagnetically induced absorption transmission in metal-insulator-metal resonators

et al. 2016

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The tunable multimode electromagnetically induced absorption (EIA)-like transmission was investigated in a two-ring system. In this system, by introducing asymmetry factor δi = λr - λr′, we provided several ways to modulate the EIA-like transmission spectra. An off-to-on EIA-like response could be realized by changing the radius or the refractive index of the rings. During the off-to-on process, we found the red shift and blue shift effects in the spectra are appeared and the widths of EIA-like dips are broadened. Numerical simulation by finite element method was conducted to verify our discussion. We believe all these would provide guidelines to design the useful EIA-like devices.

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“…Plasmonic nanostructures offer the potential to overcome diffraction limits in dielectric structures, enabling us to miniaturize optical devices [3]. For example, plasmonic has been widely researched in integrated photonic circuits [4], photonic crystals [5], optical antennas [6,7], nano-laser [8], data recording [9], filters [10], refractive index sensor [11], biological sensors [12], metalens [13], plasmonic lens [14], and so forth. Among the structures based on SPPs, the metalinsulator-metal (MIM) structure has been investigated extensively in designing plasmonic Bragg reflector.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating

Ci¹,

Xia²,

Hu³

et al. 2017

Nano Online

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We propose a plasmonic Bragg reflector (PBR) composed of a single-layer graphene-based silicon grating and numerically study its performance. An external voltage gating has been applied to graphene to tune its optical conductivity. It is demonstrated that SPP modes on graphene exhibit a stopband around the Bragg wavelengths. By introducing a nano-cavity into the PBR, a defect resonance mode is formed inside the stopband. We further design multi-defect PBR to adjust the characteristics of transmission spectrum. In addition, through patterning the PBR unit into multi-step structure, we lower the insertion loss and suppress the rippling in transmission spectra. The finite element method (FEM) has been utilized to perform the simulation work.

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Plasmonic-induced transparency and unidirectional control based on the waveguide structure with quadrant ring resonators

Cited by 38 publications

References 26 publications

Investigation on Plasmon Induced Transparency and Its Application in an Mim Typecompound Plasmonic Waveguide

Investigation on Plasmon Induced Transparency and Its Application in an Mim Typecompound Plasmonic Waveguide

Tunable multimode electromagnetically induced absorption transmission in metal-insulator-metal resonators

Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating

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