Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

Abstract Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture. Here, we present non-volatile hybrid electro-optic plasmonic switches as well as no...

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Autores principales:	Rajib Ratan Ghosh, Anuj Dhawan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6f25be3b08754ab896922eb10aca9a43
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spelling	oai:doaj.org-article:6f25be3b08754ab896922eb10aca9a432021-12-02T17:27:03ZIntegrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits10.1038/s41598-021-98418-62045-2322https://doaj.org/article/6f25be3b08754ab896922eb10aca9a432021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98418-6https://doaj.org/toc/2045-2322Abstract Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture. Here, we present non-volatile hybrid electro-optic plasmonic switches as well as novel architectures of non-volatile combinational and sequential logic circuits. The electro-optic switches consist of a plasmonic waveguide having a thin layer of a phase-change-material (PCM). The optical losses in the waveguide are controlled by changing the phase of the PCM from amorphous to crystalline and vice versa. The phase transition process in the PCM can be realized by electrical threshold switching or thermal conduction heating via external electrical heaters or the plasmonic waveguide metal itself as an integrated heater. We have demonstrated that all logic gates, a half adder circuit, as well as sequential circuits can be implemented using the plasmonic switches as the active elements. Moreover, the designs of the plasmonic switches and the logic operations show minimum extinction ratios greater than 20 dB, compact designs, low operating power, and high-speed operations. We combine photonics, plasmonics and electronics on the same platform to design an effective architecture for logic operations.Rajib Ratan GhoshAnuj DhawanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rajib Ratan Ghosh Anuj Dhawan Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
description	Abstract Integrated photonic devices or circuits that can execute both optical computation and optical data storage are considered as the building blocks for photonic computations beyond the von Neumann architecture. Here, we present non-volatile hybrid electro-optic plasmonic switches as well as novel architectures of non-volatile combinational and sequential logic circuits. The electro-optic switches consist of a plasmonic waveguide having a thin layer of a phase-change-material (PCM). The optical losses in the waveguide are controlled by changing the phase of the PCM from amorphous to crystalline and vice versa. The phase transition process in the PCM can be realized by electrical threshold switching or thermal conduction heating via external electrical heaters or the plasmonic waveguide metal itself as an integrated heater. We have demonstrated that all logic gates, a half adder circuit, as well as sequential circuits can be implemented using the plasmonic switches as the active elements. Moreover, the designs of the plasmonic switches and the logic operations show minimum extinction ratios greater than 20 dB, compact designs, low operating power, and high-speed operations. We combine photonics, plasmonics and electronics on the same platform to design an effective architecture for logic operations.
format	article
author	Rajib Ratan Ghosh Anuj Dhawan
author_facet	Rajib Ratan Ghosh Anuj Dhawan
author_sort	Rajib Ratan Ghosh
title	Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
title_short	Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
title_full	Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
title_fullStr	Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
title_full_unstemmed	Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
title_sort	integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6f25be3b08754ab896922eb10aca9a43
work_keys_str_mv	AT rajibratanghosh integratednonvolatileplasmonicswitchesbasedonphasechangematerialsandtheirapplicationtoplasmoniclogiccircuits AT anujdhawan integratednonvolatileplasmonicswitchesbasedonphasechangematerialsandtheirapplicationtoplasmoniclogiccircuits
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Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits

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