Coupling a silicon-on-insulator waveguide to a metal–dielectric–metal plasmonic waveguide through a vertical and lateral taper-funnel structure

Badri, S. Hadi; Gilarlue, M. M.

doi:10.1007/s00340-020-07454-z

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The metal-insulator-metal (MIM) waveguide is proposed because it shows better performance to guide confined excitation light waves at the sub-wavelength scale along the nanostructure and because it achieves high transmission efficiency and simplicity in the manufacturing procedure. The features and characteristics of MIM structures attracted the interest of researchers, which enabled them to propose different types of plasmonic devices based on MIM nanostructures, such as demultiplexers [6], modulators [7], filters [8], sensors [9][10][11], splitters [12], optical switches [13], Mach-Zehnder interferometers [14], couplers [15][16][17], plasmonic diode [18,19], which have been introduced after being studied and verified experimentally and theoretically [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

et al. 2023

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In this study, we propose an ultra-wideband bandstop filter (UWB-BSF) using a plasmonic MIM waveguide coupled with a stub cavity that is investigated using finite-difference time-domain (FDTD). Air and silver are used as insulators and metals, respectively; silver is characterized by the Drude model. The structure can filter the optical telecommunication wavelengths of 1550 nm and 1310 nm. The transmission peak and the resonance wavelength of the basic structure can be tuned by varying the stub resonator’s length and width. In order to improve the filtering function of the bandstop filter at broad bandwidth in the NIR region with maximum transmission peak, the number of stub resonators is increased to two, three, and four stubs with properly studied lengths and a proper horizontal distance between each two stubs. The bandwidth is enhanced from 350 nm, with two stubs, to 620nm, with three stubs, and 770 nm, with four stubs, respectively. The corresponding filtered wavelength ranges are [1600nm-1950nm], [1330nm-1950nm] and [1180nm-1950nm] respectively. Moreover, with the increase in the number of stubs, the center wavelength achieves a blue shift to lower wavelengths. Further, the paper provides significant applications for plasmonic bandstop filters in highly integrated optical circuits.

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Section: Introductionmentioning

confidence: 99%

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

et al. 2023

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Design and analysis of a triangular silicon based nano plasmonic coupler with an enhanced transmittance at the optical wavelength

Rahnuma,

Enam,

Mahmud

et al. 2025

Optics Communications

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LiNbO₃ waveguide with embedded Ag nanowire and 3L MoS₂ for strong light confinement and ultra-long propagation length in the visible spectral range

et al. 2021

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A vertical slot LiNbO3 waveguide with an Ag nanowire and 3L MoS2 embedded in the low-refractive index slot region is proposed for the purpose of improving light confinement. We find that the proposed waveguide has a novel dielectric based plasmonic mode, where local light field is enhanced by the Ag nanowire. The mode exhibits an extremely large figure of merit (FoM) of 6.5×106, one order of magnitude larger than that the largest FoM of any plasmonic waveguide reported in the literature to date. The waveguide also has an extremely long propagation length of 84 cm in the visible wavelength at 680 nm. Furthermore, the waveguide has a low sub-micro bending loss and can be directly connected to all-dielectric waveguides with an extremely low coupling loss. The proposed vertical slot LiNbO3 waveguide is a promising candidate for the realization of ultrahigh integration density tunable circuits in the visible spectral range.

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Coupling a silicon-on-insulator waveguide to a metal–dielectric–metal plasmonic waveguide through a vertical and lateral taper-funnel structure

Cited by 3 publications

References 22 publications

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

Design and analysis of a triangular silicon based nano plasmonic coupler with an enhanced transmittance at the optical wavelength

LiNbO₃ waveguide with embedded Ag nanowire and 3L MoS₂ for strong light confinement and ultra-long propagation length in the visible spectral range

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Coupling a silicon-on-insulator waveguide to a metal–dielectric–metal plasmonic waveguide through a vertical and lateral taper-funnel structure

Cited by 3 publications

References 22 publications

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators

Design and analysis of a triangular silicon based nano plasmonic coupler with an enhanced transmittance at the optical wavelength

LiNbO3 waveguide with embedded Ag nanowire and 3L MoS2 for strong light confinement and ultra-long propagation length in the visible spectral range

Contact Info

Product

Resources

About

LiNbO₃ waveguide with embedded Ag nanowire and 3L MoS₂ for strong light confinement and ultra-long propagation length in the visible spectral range