Plasmonic-induced transparency in a MIM waveguide with two side-coupled cavities

Noual, Adnane; Abouti, O. El; Boudouti, El Houssaine El; Akjouj, Abdellatif; Pennec, Yan; Djafari‐Rouhani, Bahram

doi:10.1007/s00339-016-0638-y

Cited by 12 publications

(10 citation statements)

References 26 publications

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“…In 2017, Noual et al? realized the PIT effect by coupling two horizontally placed rectangular cavities on both sides of a MIM bus waveguide [22]. In 2018, Wang et al realized the PIT effect by placing a trapezoid resonator and a horizontally placed rectangular resonator to the same side of an MIM bus waveguide [23].…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…The analytical results are confirmed by the experimental measurements using the coaxial cables in the radio-frequency regime. The results presented in this work can be transposed straightforwardly to mesoscopic systems [11,12,80] as well as plasmonic MIM waveguides operating in the infrared domain by taking properly the geometrical parameters at the nanoscale [22,81]. The structure can be proposed to realize an efficient refractive index sensor.…”

Section: Bics and Resonances Induced By The Two Arms Of The Loopmentioning

confidence: 95%

Friedrich-Wintgen bound states in the continuum and induced resonances in a loop laterally coupled to a waveguide

et al. 2022

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The concept of bound states in the continuum (BICs) in a simple cavity attracts much interest in recent works in wave physics. The BICs are perfectly confined modes with an infinite lifetime that reside inside the continuous spectrum of radiative modes, but they remain totally decoupled from it. There exist several types of BICs based on their physical origin: one of the most interesting types is Friedrich-Wintgen (FW) BICs which result from the destructive interference of two resonant modes belonging to the same cavity. Here, we investigate theoretically and experimentally the existence of FW BICs in a side-coupled loop. The cavity is made of a loop of length 2d = d 2 + d 3 connected to a stub of length d 4 . The whole cavity is attached vertically to two semi-infinite waveguides by a wire of length d 1 . We demonstrate that the BICs can be induced either by the loop-stub system or by the two arms of lengths d 2 and d 3 of the loop for specific geometrical parameters. When a perturbation in the system produces a deviation from the BIC condition, the latter transforms to either electromagnetically induced transparency (EIT) or reflection (EIR) or Autler-Townes splitting (ATS) resonances. Both EIT and ATS exhibit similar features in the transmission spectrum, namely, a transparency window; however, they have different physical origins. Therefore, EIT and ATS resonances are fitted with corresponding analytical model expressions, revealing good agreements. The Akaike's information criterion is then used to quantitatively discern EIT from ATS and the transition from ATS to EIT is also carried out. Our theoretical results are obtained by means of the Green's function method which enables us to obtain the transmission and reflection coefficients, dispersion relations, as well as density of states and scattering matrix. An experimental validation of all these results is performed in the radio-frequency domain using coaxial cables.

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“…Two side-coupled cavities are presented in refs. [120][121][122][123][124]. Both ipsilateral and contralateral positions are simulated for PIT results in an analog to either ⋁-or ⋀-type configurations (see Figure 7c).…”

Section: Plasmon-induced Transparencymentioning

confidence: 99%

Section: Plasmon-induced Transparencymentioning

confidence: 99%

“…a) Top view of the plasmonic system and simulation results for coupling between the radiative atom and dark atom, which leads to a destructive interference. [ 116 ] Schematic diagram of a stub coupled with the b) nano‐disk [ 118 ] and c) two side‐coupled cavities [ 120 ] in MIM waveguide system. d) Schematic diagram of a wavelength demultiplexer using Fano resonance and its transmission spectra and power flow.…”

Section: Plasmon‐induced Transparencymentioning

confidence: 99%

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Induced Transparency with Optical Cavities

Qin

Ding

Yin

2020

Advanced Photonics Research

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Induced transparency, an interference effect due to mode coupling, has attracted significant research interest. The first discovered and most striking type of induced transparency plays electromagnetically induced transparency (EIT) in atomic systems. Optical cavities serve as a more ideal and feasible platform for realizing the effects of induced transparency, which leads to considerable demonstrations in theory and experiments. This review provides a run‐through of research findings on different types of induced transparency phenomenon, including, inter alia, EIT, optomechanically induced transparency, plasmon‐induced transparency, Brillouin scattering induced transparency, optically induced transparency, photothermally induced transparency, and dipole‐induced transparency. Their mechanisms, developments, techniques, and applications are discussed in detail. Most importantly, the emerging area of induced transparency at exceptional points is analyzed for its great promise. The last section presents a brief summary and perspective of induced transparency with optical cavities.

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Plasmonic-induced transparency in a MIM waveguide with two side-coupled cavities

Cited by 12 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

Friedrich-Wintgen bound states in the continuum and induced resonances in a loop laterally coupled to a waveguide

Induced Transparency with Optical Cavities

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