Design of Plasmonic NOT Logic Gate Based on Insulator – Metal – Insulator (IMI) waveguides

Abstract

In this work, all-optical plasmonic NOT logic gate was proposed using Insulator-Metal-Insulator (IMI) plasmonic waveguides Technology. The proposed all-optical NOT gate is simulated and realized using COMSOL Multiphysics 5.3a software. Recently, plasmonic technology has attracted high attention due to its wide applications in all-optical signal processing. Due to its highly localization to metallic surfaces, surface plasmon (SP) may have huge applications in sub wavelength to guide the optical signal in the waveguides which results in overcoming the diffraction limit problem in conventional optics. The proposed IMI structure is consist of a dielectric waveguides plus metallic claddings, which guide the incident light strongly in the insulator region. Our design consists of symmetric nano-rings structures with two straight waveguides which based on IMI structure. The operation of all-optical NOT gate is realized by employing the constructive and destructive interface between the straight waveguides and the nano-rings structure waveguides. There are three ports in the proposed design, input, control and output ports. The activation of control port is always ON. By changing the structure dimensions, the materials, the phase of the applied optical signal to the input and control ports, the optical transmission at the output port is changed. In our proposed structure, the insulator dielectric material is glass and the metal material is silver. The calculated contrast ratio between (ON and OFF) output states is 3.16 (dB).

All-Optical Logic Gates Using a Plasmonic MIM Waveguide and Elliptical Ring Resonator

“…The proposed structure can be a good candidate as an all-optical logic gates in optical processing. [17] 2020 [18] 2014 [19] 2018 [20] 2019 [21] 2012 [22] 2018 [23]…”

“…Metal-Insulator-Metal (MIM) plasmonic waveguides are suitable components in signal processing, optimization, information processing and optical communication. Many configurations of MIM have been presented in the literature for designing plasmonic logic gates [17][18][19][20][21][22][23]. In this work, we will design all-optical logic gates based on a MIM waveguides coupled to an elliptical ring resonator (ERR).…”

Channel estimation of OFDM in C-band communication systems under different distribution conditions

“…The estimation of the channel at pilot frequencies depends on LS and LMS while the channel insertion is finished utilizing straight interposition, second solicitation inclusion, low-pass presentation, spline cubic interjection, also, time-space addition. The time-space introduction is gotten by breathing easy area through inverse discrete Fourier transform (IDFT), zero cushioning and returning to recurrence space through discrete Fourier transform (DFT) [24], [25]. Also, Pilots are sent in all the sub-transporters of the principal image of each square and channel estimation is performed by utilizing LS estimation.…”

Design and implementation of PC to PC data transmission using wireless visible light communication system

“…Visible light communications (VLC) using a laser diode give a wide bandwidth to cope with the busy radio spectrum [6]. VLC uses air as the transmission medium, visible light between 400 and 800 THz as the signal transmitter, and a laser receiver as the signal receiver [7]. Other compelling features of this technology are unlicensed bandwidth, radiation-free transmission, and high capacity.…”