A Wavelength Demultiplexing Structure Based on the Multi-Teeth-Shaped Plasmonic Waveguide Structure

Abbaszadeh-Azar, Omid; Abedi, Kambiz

doi:10.1007/s11468-020-01149-z

Cited by 13 publications

(5 citation statements)

References 36 publications

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“…Several different Nano-guiding MIM devices based on SPPs have been investigated in recent years such as filters [8][9][10][11][12][13][14][15], power splitters [16][17][18][19][20][21], Y-shaped combiners [22], directional couplers [2,23] and plasmonic refractive index sensors [24][25][26][27][28]. There have also been extensive efforts in designing WDMs based on MIM plasmonic waveguides [29][30][31][32][33][34]. Due to the fundamental role of WDMs in optical communication systems compared to other types of Nano-plasmonic devices, they have attracted more attention.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Tunable and High Transmission Efficiency Metal-Insulator-Metal Power Splitter and Dual Wavelength Division Multiplexer

Ghasemi

Bayati

Sahandabadi

2022

Preprint

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In this paper, a plasmonic power splitter and a Wavelength Division Multiplexer (WDM) based on metal-insulator-metal (MIM) surface are investigated. By using Finite Difference Time Domain (FDTD) method, the transmission spectra of the suggested devices are extracted. The simulation results demonstrate that the equal transmitted wavelengths of the two output ports can be easily tuned by changing the geometric parameters of the structure. Then, the structure geometries are modified into a WDM. Subsequently, the dependence of demultiplexing wavelengths on geometrical parameters of the structure is investigated. Besides being highly compact and efficient, having narrow-band spectra and low reflectance coefficient are the other main advantages of these devices. Therefore, the power splitter and wavelength division multiplexer presented can be of great interest in a wide range of applications from highly integrated photonic circuits to optical communication systems.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Tunable and High Transmission Efficiency Metal-Insulator-Metal Power Splitter and Dual Wavelength Division Multiplexer

Ghasemi

Bayati

Sahandabadi

2022

Preprint

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“…In [24], the multimode interference effect is utilized to make MIM waveguide-based demultiplexer and splitter with an extinction ratio of ~ 11.6 dB. Moreover, there are several other interesting works on plasmonic demultiplexers [25][26][27][28]; however, all of them failed to provide a mechanism for lighting coupling to the MIM waveguide. This is the reason, there is no experimental demonstration of the plasmonic device based on a MIM waveguide is yet available [29].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Design of a 1 × 2 Plasmonic Demultiplexer Based on Metal–Insulator-Metal Waveguide for Telecommunication Wavelengths

2023

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In this work, a numerical analysis of a compact 1 × 2 plasmonic demultiplexer based on a metal–insulator-metal (MIM) waveguide is presented. Two hollow circular cavities are side coupled to the bus waveguide on both sides. The cavities are designed in such a way that they resonate at the working wavelength of 1310 nm and 1550 nm. The mechanism of light coupling to an MIM waveguide has not been considered in previous studies. Therefore, a silicon tapered mode converter is integrated with a plasmonic demultiplexer for the efficient conversion of a dielectric to a plasmonic mode. The footprint of the device is 6 μm × 6 μm. The crosstalk at P1 and P2 is ~ 14.07 dB and ~ 13.67 dB for the transmission wavelength of 1310 nm and 1550 nm, respectively.

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“…Although such resonators have a more difficult fabrication process, they have a better coupling ability with metal–insulator-metal (MIM) waveguides compared to nano-disk resonators. Using stub resonators is another technique, which has been used to design optical DEMUXes 30 . One of the main advantages of such structures is that they can be analyzed using the transmission line method which is faster than the conventional finite-difference time-domain (FDTD) method.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable and scalable 2,4-and 6-channel plasmonics demultiplexer utilizing symmetrical rectangular resonators containing silver nano-rod defects with FDTD method

Khani

Farmani

Mir

2021

Sci Rep

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Reconfigurable and scalable plasmonics demultiplexers have attracted increasing attention due to its potential applications in the nanophotonics. Therefore, here, a novel method to design compact plasmonic wavelength demultiplexers (DEMUXes) is proposed. The designed structures (two, four, and six-channel DEMUXes) consist of symmetrical rectangular resonators (RRs) incorporating metal nano-rod defects (NRDs). In the designed structures, the RRs are laterally coupled to metal–insulator-metal (MIM) waveguides. The wavelengths of the output channels depend on the numbers and radii of the metal NRDs in the RRs. The results obtained from various device geometries, with either a single or multiple output ports, are performed utilizing a single structure, showing real reconfigurability. The finite-difference time-domain (FDTD) method is used for the numerical investigation of the proposed structures. The metal and insulator used for the realization of the proposed DEMUXes are silver and air, respectively. The silver’s permittivity is characterized by the well-known Drude model. The basic plasmonic filter which is used to design plasmonic DEMUXes is a single-mode filter. A single-mode filter is easier to cope with in circuits with higher complexity such as DEMUXes. Also, different structural parameters of the basic filter are swept and their effects on the filter’s frequency response are presented, to provide a better physical insight. Taking into account the compact sizes of the proposed DEMUXes (considering the six-channel DEMUX), they can be used in integrated optical circuits for optical communication purposes.

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A Wavelength Demultiplexing Structure Based on the Multi-Teeth-Shaped Plasmonic Waveguide Structure

Cited by 13 publications

References 36 publications

WITHDRAWN: Tunable and High Transmission Efficiency Metal-Insulator-Metal Power Splitter and Dual Wavelength Division Multiplexer

WITHDRAWN: Tunable and High Transmission Efficiency Metal-Insulator-Metal Power Splitter and Dual Wavelength Division Multiplexer

Miniaturized Design of a 1 × 2 Plasmonic Demultiplexer Based on Metal–Insulator-Metal Waveguide for Telecommunication Wavelengths

Reconfigurable and scalable 2,4-and 6-channel plasmonics demultiplexer utilizing symmetrical rectangular resonators containing silver nano-rod defects with FDTD method

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