Design of all-optical OR/NAND logic gate using plasmonic metal-insulator-metal waveguide

Kuldeep Choudhary; Saurabh Mishra; Sonika Singh; Santosh Kumar

doi:10.1117/12.2576753

5 March 2021 Design of all-optical OR/NAND logic gate using plasmonic metal-insulator-metal waveguide

Kuldeep Choudhary, Saurabh Mishra, Sonika Singh, Santosh Kumar

Proceedings Volume 11680, Physics and Simulation of Optoelectronic Devices XXIX; 116801J (2021) https://doi.org/10.1117/12.2576753
Event: SPIE OPTO, 2021, Online Only

Conference Poster

Abstract

Recently, optical waveguides designed by utilizing metal-insulator-metal (MIM) are widely used because of its excellent ability to limit surface plasmons to a deep sub-wavelength scale. In this paper, combined design of OR and universal NAND logic gates is proposed using the switching property of non-linear effect of plasmonic-MIM waveguide-based Mach–Zehnder interferometer. The footprint of proposed Feynman logic gate is 42μm*9μm, extinction ratio is 9.03dB for NAND gate and 11.25dB for OR gate. An insertion loss of -0.705dB for NAND gate and -0.655 dB for OR which is much better as compared to electro-optic based structures.The simulation is done using a finite-difference time-domain (FDTD) method and mathematical modeling of the device that has been verified by using MATLAB.

Citation Download Citation

Kuldeep Choudhary, Saurabh Mishra, Sonika Singh, and Santosh Kumar "Design of all-optical OR/NAND logic gate using plasmonic metal-insulator-metal waveguide", Proc. SPIE 11680, Physics and Simulation of Optoelectronic Devices XXIX, 116801J (5 March 2021); https://doi.org/10.1117/12.2576753

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