Research on transmission characteristics of aperture-coupled square-ring resonator based filter

Peng, Xiao; Li, Hongjian; Wu, Caini; Cao, Guangtao; Liu, Zhimin

doi:10.1016/j.optcom.2012.12.026

Cited by 46 publications

(14 citation statements)

References 21 publications

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“…The effective index with propagation constant β in the waveguide for SPPs is n eff = β/k 0 . The Drude model used to calculate the complex relative permittivity of metals and here for silver is as follows: ω p = 1.38*10 16 Hz is the natural frequency of free electron oscillations which is called the bulk plasma frequency, which has a damping frequency of oscillations is ɣ = 2.73*10 13 Hz, the angular frequency of the electromagnetic beam collision is ω and ω ∞ the infinite angular frequency for dielectric constant is 3.7 (Peng et al 2013). Now, we know a resonant cavity supports a resonant mode for frequency w 0 (be compatible with to a resonant wavelength in λ 0 ) and like the single nano-ring cavity in the structure.…”

Section: Theoretical Modelmentioning

confidence: 99%

Numerical analysis of tunable nonlinear plasmonic router based on nanoscale ring resonators

2020

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In the advanced plasmonics integrated circuits (PICs) there has been outstanding, continuing interest in developing routers to harness light-matter interactions in nanoscale dimensions with wanted optical properties. In this regard, herein, we introduce an all-optical router based on nanometer ring resonator which surface plasmon resonance (SPR) and nonlinear materials are used simultaneously to enhance high performance range. By changing the radius of the ring resonator and the intensity of the light we achieved control of the parameters and the routing. The results of routing and shifting the central frequency with light intensity and radius of the ring resonator are studied. The performance of the router indicates that a ring is required for each ports, which changes the control parameters to change its central frequency, as well as we can be said the use of switches and filters as other design features. These routers have advantages such as nano scale size, low light intensity, fast response time, integratable and etc., which are highly used in all-optical circuits, image processing and today's modern technology. In our simulation, we consider transmission or reflection of light in each ports based on the finite difference time domain (FDTD).

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Section: Theoretical Modelmentioning

confidence: 99%

Numerical analysis of tunable nonlinear plasmonic router based on nanoscale ring resonators

2020

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“…The process of interaction of electromagnetic waves with the free electrons in metals is called Surface Plasmon Polaritons (SPPs). SPPs are propagating on the metaldielectric interface [2][3]. It is a collective wave where billions of electrons oscillate in synchronization at optical frequencies.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Universal Logic Gates at Nano-scale Dimensions

Al-Tameemi

Abbas

2021

IJN

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Though photonics displays an attractive solution to the speed limitation of electronics, decreasing the size of photonic devices is one of the major problems with implementing photonic integrated circuits that are regarded the challenges to produce all-optical computers. Plasmonic can solve these problems, it be a potential solution to fill the gaps in the electronics (large bandwidth and ultra-high speed) and photonics (diffraction limit due to miniaturization size). In this paper, Nano-rings Insulator-Metal-Insulator (IMI) plasmonic waveguides has been used to propose, design, simulate, and perform all-optical universal logic gates (NOR and NAND gates). By using Finite Element Method (FEM), the structure of the proposed plasmonic universal logic gates are designed and numerically simulated by two dimensions (2-D) structure. Silver and Glass materials were chosen to construct proposed structure. The function of the proposed plasmonic NOR and NAND logic gates was achieved by destructive and constructive interferences principle. The performance of the proposed device is measured by three criteria; the transmission, extension ratio, and modulation depth. Numerical simulations show that a transmission threshold (0.3) which allows achieving the proposed plasmonic universal logic gates in one structure at 1550 nm operating wavelength. The properties of this devise was as follows: The transmission exceeds 100% in one state of NAND gate, medium values of Extension Ratio, very high MD values, and very small foot print. In the future, this device will be the access to the nanophotonic integrated circuits and it has regarded fundamental building blocks for all-optical computers.

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“…1 SPPs are the interaction of electromagnetic waves and the free electrons of metals, propagating on the metaldielectric or dielectric-metal interfaces. 2,3 Different passive and active plasmonic devices, such as nanocavities, 4 Bragg reflectors, 4 splitters, 5 resonators, 6 couplers, 7 modulators, 8 multi/demultiplexers, 9 stub waveguides, 5 hybrid plasmonic waveguides, 10 switches, 11,12 and logic gates, [13][14][15][16][17][18] have been realized so far. On the subject of all-optical logic gates, several studies have been proposed, analyzed, and investigated, for example, single semiconductor optical amplifiers, 19 hybrid plasmonic-photonic crystal nanobeam cavities, 18 two-photon absorption in silicon waveguides, 20 silicon microring resonators, 21,22 cross-phase modulation, 23 and nanophotonic plasmonics.…”

Section: Introductionmentioning

confidence: 99%

All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

Abdulnabi

2019

J. Nanophoton.

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We propose, analyze, and simulate a configuration to realize all-optical logic gates based on nanoring insulator-metal-insulator (IMI) plasmonic waveguides. The proposed plasmonic logic gates are numerically analyzed by finite element method. The analyzed gates are NOT, OR, AND, NOR, NAND, XOR, and XNOR. The operation principle of these gates is based on the constructive and destructive interferences between the input signal(s) and the control signal. The suggested value of transmission threshold between logic 0 and logic 1 states is 0.25. The suggested value of the transmission threshold achieves all seven plasmonic logic gates in one structure. We use the same structure with the same dimensions at 1550-nm wavelength for all proposed plasmonic logic gates. Although we realize seven gates, in some cases, the transmission of the proposed plasmonic logic gates exceeds 100%, for example, in OR gate (175%), in NAND gate (112.3%), and in XNOR gate (175%). As a result, the transmission threshold value measures the performance of the proposed plasmonic logic gates. Furthermore, the proposed structure is designed with a very small area (400 nm × 400 nm). The proposed all-optical logic gates structure significantly contributes to the photonic integrated circuits construction and all-optical signal processing nanocircuits. , many all-optical plasmonic structures provided nanoscale logic gates. [25][26][27][28][29] Each nanologic gate has a different way to realize the functions of the gates, a different number

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Research on transmission characteristics of aperture-coupled square-ring resonator based filter

Cited by 46 publications

References 21 publications

Numerical analysis of tunable nonlinear plasmonic router based on nanoscale ring resonators

Numerical analysis of tunable nonlinear plasmonic router based on nanoscale ring resonators

All-Optical Universal Logic Gates at Nano-scale Dimensions

All-optical logic gates based on nanoring insulator–metal–insulator plasmonic waveguides at optical communications band

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