Plasmonic band-pass filter device using coupled asymmetric cross-shaped cavity

2017 ◽  
Vol 31 (01) ◽  
pp. 1750001 ◽  
Author(s):  
Xiao-Meng Geng ◽  
Si-Chen Mi ◽  
Tie-Jun Wang ◽  
Lin-Yan He ◽  
Chuan Wang
Keyword(s):  
Integrated Circuits ◽  
Fdtd Method ◽  
Optical Signal ◽  
Band Pass Filter ◽  
Peak Wavelength ◽  
Metal Insulator ◽  
Pass Filter ◽  
Metal Insulator Metal ◽  
Wavelength Filter ◽  
Band Pass

In this paper, a novel plasmonic band-pass filter by using the system consisting four waveguides and an asymmetric cross-shaped resonator is proposed. The plasmonic system is based on the metal–insulator–metal (MIM) structure which could overcome the diffraction limit and exhibit various promising applications. Here, we investigate the transmission spectra of the cross-shaped resonator by using finite-different-time-domain (FDTD) method and we find that the peak-wavelength on different ports show redshift or blueshift behaviors which are linearly changed with the length of cavity or the coupling distance. Moreover, the wavelength filter could be achieved and further applied in optical signal integrated circuits.

scholarly journals An Ultra-Wideband Band Pass Filter using Metal Insulator Metal Waveguide for Nanoscale Applications

2021 ◽  
Vol 11 (3) ◽  
pp. 7247-7250
Author(s):  
S. K. Bitra ◽  
S. Miriyala
Keyword(s):  
Integrated Circuits ◽  
Theoretical Calculations ◽  
Wide Band ◽  
Ultra Wideband ◽  
Band Pass Filter ◽  
Metal Insulator ◽  
Pass Filter ◽  
Metal Waveguide ◽  
Metal Insulator Metal ◽  
Band Pass

A T-stub Square Ring Resonator (SRR) based Ultra-Wide Band (UWB) Band Pass Filter (BPF) is studied and investigated in this paper. The proposed filter is based on coupled feed line connected to the T-stub SRR. Ultra-wideband characteristics can be realized by adjusting the T-stub lengths and coupling the gaps between both sides of waveguides and SRR. The characteristics of the T-stub SRR show that the miniaturized UWB BPF can be operated at THz frequencies. The proposed UWB filter is simulated and analyzed using the Finite Differential Time Domain (FDTD) solver-based Computer Simulation Technology (CST) studio suite. The resonance conditions are explained and the transmission performance of the filter agrees with the simulated and theoretical calculations. The proposed filter is best suitable for Electronic-Plasmonic Integrated Circuits (EPICs).

The energy separation effect based on the disk resonance multichannel MIM waveguide

2016 ◽  
Vol 30 (28) ◽  
pp. 1650344
Author(s):  
Liu Wang ◽  
Ya-Ping Zeng ◽  
Zhi-Yong Wang ◽  
Xiong-Ping Xia ◽  
Qiu-Qun Liang
Keyword(s):  
Near Infrared ◽  
Fdtd Method ◽  
Output Port ◽  
Infrared Light ◽  
Energy Separation ◽  
Band Pass Filter ◽  
Separation Function ◽  
Pass Filter ◽  
Metal Insulator Metal ◽  
Mim Waveguide

In this paper, a multichannel metal–insulator–metal (MIM) waveguide structure based on a disk resonator is proposed. The transmission characteristics of visible and near-infrared light in the waveguide are investigated by using the finite-difference time-domain (FDTD) method. The results show that the structure has typical band-pass filter function due to the wave resonance in the nanodisk. The energy of the second-order resonance wavelength of the disk can transmit through each output port averagely, which is realized by the energy separation function of the electromagnetic wave. Moreover, the wavelength will transmit through the output port in redshift as the radius and/or the refractive index of the disk are increased. The transmissivity is sharply reduced with the increase of the coupling thickness between the disk and the output port waveguide.

scholarly journals Excitation Schemes of Plasmonic Angular Ring Resonator-Based Band-Pass Filters Using a MIM Waveguide

Photonics ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 41 ◽  
Author(s):  
Vishwanath Mittapalli ◽  
Habibulla Khan
Keyword(s):  
Ring Resonator ◽  
Simulation Software ◽  
Ring Resonators ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Analysis And Design ◽  
Compact Size ◽  
Metal Insulator Metal ◽  
Band Pass ◽  
Mim Waveguide

This article describes the analysis and design of the excitation schemes of the plasmonic angular ring resonator-based band-pass filters using a metal-insulator-metal (MIM) waveguide. The excitation schemes of the plasmonic angular ring resonator-based band-pass filters have been analyzed in terms of their physical length by using commercially available electromagnetic full-wave simulation software (CST microwave studio). The excitation schemes of the plasmonic angular ring resonator-based band-pass filter using a MIM waveguide have been realized at the optical O (1260–1360 nm) and U (1625–1675 nm) bands, respectively, as it has dual-band characteristics. The excitation schemes of the plasmonic angular ring resonators have been designed and simulated to determine the variation in transmission and reflection coefficients. The magnetic field distribution of the proposed filters was observed. The ring resonators require low power and had a compact size, which was further used for the development of photonic integrated circuits (PICs). The applications of these resonators are further extended and they are used in the development of antennas, branch line couplers, directional couplers and diplexers.

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