scholarly journals Design and modelling of all-optical NAND gate using metal-insulator-metal (MIM) waveguides based Mach- Zehnder Interferometers for high-speed information processing

2021 ◽  
Author(s):  
Sandip Swarnakar ◽  
Siva Koti Reddy ◽  
Ramanand Harijan ◽  
Santosh Kumar
Keyword(s):  
Information Processing ◽  
Integrated Circuits ◽  
High Speed ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Nand Gate ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
All Optical ◽  
Mathematical Computation

Abstract All the basic logic gates play a major role in carrying out the mathematical computation. The drawbacks of conventional electronics are alleviated by all-optical integrated circuits with a great application of high-speed computing and information processing. In this paper, plasmonic metal-insulator-metal (MIM) waveguides have an excellent property of propagating the surface plasmons beyond the diffraction limit up to deep sub-wavelength scale. All-optical NAND gate design is optimized by using MIM plasmonic waveguide-based Mach-Zehnder Interferometers (MZIs) in the footprint of 36 µm × 8 µm that works at 1.55 µm operating wavelength. The better performance of the proposed device is achieved, such as the extinction ratio is 10.55 dB, insertion loss is obtained as 0.506 dB, and response time is 262 ps. The proposed design is verified by using the finite-difference time-domain (FDTD) technique and further analysis are carried out by mathematical computation and MATLAB simulation results.

scholarly journals Enhanced All-Optical Y-Shaped Plasmonic OR, NOR And NAND Gate Models, Analyses, And Simulation For High Speed Computations

2021 ◽  
Author(s):  
Ipshitha Charles ◽  
Alluru Sreev ◽  
SabbiVamshi Krishna ◽  
Sandip Swarnakar ◽  
Santosh Kumar
Keyword(s):  
Integrated Circuits ◽  
High Speed ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Nand Gate ◽  
Optical Logic ◽  
Metal Insulator Metal ◽  
All Optical ◽  
A New Technique ◽  
Complex Circuits

Abstract In this digital era, all-optical logic gates (OLGs) proved its effectiveness in execution of high-speed computations. A unique construction of an all-optical OR, NOR, NAND gates based on the notion of power combiner employing metal–insulator–metal (MIM) waveguide in the Y-shape in a minimal imprint of 6.2 µm × 3 µm is presented and the structure is evaluated by finite-difference time-domain (FDTD) technique. The insertion loss (IL) and extinction-ratio (ER) for proposed model are 6 dB and 27.76 dB for NAND gate, 2 dB and 20.35 dB for NOR gate and 6 dB and 24.10 dB respectively. The simplified model is used in the construction of complex circuits to achieve greater efficiency, which contributes to the emergence of a new technique for designing plasmonic integrated circuits.

scholarly journals Enhanced All-optical Y-shaped Plasmonic NAND Gate Model, Analysis, and Simulation for High Speed Computations

2021 ◽  
Author(s):  
Ipshitha Charles ◽  
Alluru Sreev ◽  
SabbiVamshi Krishna ◽  
Sandip Swarnakar ◽  
Santosh Kumar
Keyword(s):  
Integrated Circuits ◽  
High Speed ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Nand Gate ◽  
Optical Logic ◽  
Metal Insulator Metal ◽  
All Optical ◽  
A New Technique ◽  
Complex Circuits

Abstract In this digital era, all-optical logic gates (OLGs) proved its effectiveness in execution of high-speed computations. A unique construction for all optical NAND gate based on the notion of power combiner employing metal–insulator–metal (MIM) waveguide in the Y-shape in a minimal imprint of 6.2 µm × 3 µm is presented and the structure is evaluated by finite-difference time-domain (FDTD) technique. The insertion loss (IL) and extinction-ratio (ER) for proposed model are 6 dB and 27.76 dB. The simplified model is used in the construction of complex circuits to achieve greater efficiency, which contributes to the emergence of a new technique for designing plasmonic integrated circuits.

scholarly journals Design, Analysis, and Simulation of All-optical Optimized and Gate Using Y-shaped Plasmonic Waveguide for High-speed Computing Devices

2021 ◽  
Author(s):  
Surya Pavan Kumar Anguluri ◽  
Srinivas Raja Banda ◽  
Sabbi Vamshi Krishna ◽  
Sandip Swarnakar ◽  
Santosh Kumar
Keyword(s):  
High Speed ◽  
Extinction Ratio ◽  
Fdtd Method ◽  
Logic Gates ◽  
Optical Logic ◽  
Digital World ◽  
Novel Structure ◽  
Metal Waveguide ◽  
Metal Insulator Metal ◽  
All Optical

Abstract All-optical logic gates have proven their significance in the digital world using which all high-speed computations are calculated. In this paper, we have proposed a novel structure for all-optical AND using the concept of power combiner using Y-shaped metal-insulator-metal waveguide under the footprints of A. This design works under the principle of linear interference. The insertion loss and extinction ratio of the design are given by 0.165 dB and 14.11 dB, respectively. The analysis of the design is carried out by finite-difference-time-domain (FDTD) method and verified using MATLAB. This minimized structure can be used to design any complex logic circuits to achieve better performance in future.

Design of optimized all-optical NAND gate using metal-insulator-metal waveguide

Optik ◽  
2019 ◽  
Vol 182 ◽  
pp. 524-528 ◽  
Author(s):  
Ajaypreet Singh ◽  
Amrindra Pal ◽  
Yadvendra Singh ◽  
Sandeep Sharma
Keyword(s):  
Nand Gate ◽  
Metal Insulator ◽  
Metal Waveguide ◽  
Metal Insulator Metal ◽  
All Optical

All-Optical Switching Device Using Plasmonic Mach-Zehnder Interferometer Structure

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Lokendra Singh ◽  
Santosh Kumar ◽  
Brajesh Kumar Kaushik
Keyword(s):  
Optical Switching ◽  
Logic Gate ◽  
Extinction Ratio ◽  
Logic Gates ◽  
Zehnder Interferometer ◽  
Matlab Simulation ◽  
All Optical ◽  
Mathematical Computation ◽  
All Optical Switching ◽  
Mach Zehnder Interferometer

AbstractThe basic logic gates play a key role in performing the mathematical computation. The plasmonics has the uniqueness of confining surface plasmons beyond the diffraction limit. Plasmonic-based Mach-Zehnder interferometer with an extinction ratio of 26 dB is proposed to design the structure of all-optical XOR and XNOR logic gate. A theoretical analysis of proposed gate is carried out using finite-difference-time-domain method and MATLAB simulation results.

scholarly journals All-Optical Universal Logic Gates at Nano-scale Dimensions

2021 ◽  
pp. 34-43
Author(s):  
Saif Al-Tameemi ◽  
Mohammed Nadhim Abbas
Keyword(s):  
Integrated Circuits ◽  
Modulation Depth ◽  
Logic Gates ◽  
Building Blocks ◽  
Two Dimensions ◽  
Nand Gate ◽  
Universal Logic ◽  
Extension Ratio ◽  
Optical Computers ◽  
All Optical

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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