Feasibility of Cascadable Plasmonic Full Adder

The concept and configuration of a plasmonic cascadable full adder are proposed, whose logic operation is carried out by interference of surface plasmons and whose circuits are formed only with single- and multiple-mode plasmonic waveguides. This full adder is fabricated by patterning a SiO<sub&g...

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Main Authors: Mitsuo Fukuda, Ryo Watanabe, Yuta Tonooka, Masashi Ota
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/8782643/
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author Mitsuo Fukuda
Ryo Watanabe
Yuta Tonooka
Masashi Ota
author_facet Mitsuo Fukuda
Ryo Watanabe
Yuta Tonooka
Masashi Ota
author_sort Mitsuo Fukuda
collection DOAJ
description The concept and configuration of a plasmonic cascadable full adder are proposed, whose logic operation is carried out by interference of surface plasmons and whose circuits are formed only with single- and multiple-mode plasmonic waveguides. This full adder is fabricated by patterning a SiO<sub>2</sub> film deposited on a metal film using complementary metal-oxide-semiconductor-compatible processes except for the material of metal. The redundant surface plasmons present after interference are drained from the waveguides by forming radiation ports, and metal bumps are formed in the circuits to prevent stray light recoupling with the waveguides. The logic operation of the circuits is numerically confirmed by the three-dimensional finite-difference time domain method, and the difference in surface plasmon intensity between logic level &#x201C;0&#x201D; and &#x201C;1&#x201D; is numerically estimated to be 1.5&#x00A0;dB even for the worst case. These simulations were experimentally confirmed for some input signal patterns using scanning near-field microscopy, and the surface plasmon intensity distributions monitored coincide well with those simulated.
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publishDate 2019-01-01
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spelling doaj-art-9ce05a0db2d54d77b2b822028425a6d72025-08-20T03:15:48ZengIEEEIEEE Photonics Journal1943-06552019-01-0111411210.1109/JPHOT.2019.29322628782643Feasibility of Cascadable Plasmonic Full AdderMitsuo Fukuda0https://orcid.org/0000-0002-1458-281XRyo Watanabe1Yuta Tonooka2Masashi Ota3Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, JapanThe concept and configuration of a plasmonic cascadable full adder are proposed, whose logic operation is carried out by interference of surface plasmons and whose circuits are formed only with single- and multiple-mode plasmonic waveguides. This full adder is fabricated by patterning a SiO<sub>2</sub> film deposited on a metal film using complementary metal-oxide-semiconductor-compatible processes except for the material of metal. The redundant surface plasmons present after interference are drained from the waveguides by forming radiation ports, and metal bumps are formed in the circuits to prevent stray light recoupling with the waveguides. The logic operation of the circuits is numerically confirmed by the three-dimensional finite-difference time domain method, and the difference in surface plasmon intensity between logic level &#x201C;0&#x201D; and &#x201C;1&#x201D; is numerically estimated to be 1.5&#x00A0;dB even for the worst case. These simulations were experimentally confirmed for some input signal patterns using scanning near-field microscopy, and the surface plasmon intensity distributions monitored coincide well with those simulated.https://ieeexplore.ieee.org/document/8782643/Surface plasmon polaritonlogic circuitplasmonic waveguidefull adder.
spellingShingle Mitsuo Fukuda
Ryo Watanabe
Yuta Tonooka
Masashi Ota
Feasibility of Cascadable Plasmonic Full Adder
IEEE Photonics Journal
Surface plasmon polariton
logic circuit
plasmonic waveguide
full adder.
title Feasibility of Cascadable Plasmonic Full Adder
title_full Feasibility of Cascadable Plasmonic Full Adder
title_fullStr Feasibility of Cascadable Plasmonic Full Adder
title_full_unstemmed Feasibility of Cascadable Plasmonic Full Adder
title_short Feasibility of Cascadable Plasmonic Full Adder
title_sort feasibility of cascadable plasmonic full adder
topic Surface plasmon polariton
logic circuit
plasmonic waveguide
full adder.
url https://ieeexplore.ieee.org/document/8782643/
work_keys_str_mv AT mitsuofukuda feasibilityofcascadableplasmonicfulladder
AT ryowatanabe feasibilityofcascadableplasmonicfulladder
AT yutatonooka feasibilityofcascadableplasmonicfulladder
AT masashiota feasibilityofcascadableplasmonicfulladder