Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor

Abstract In this study, the optical Tamm state is excited for the first time using gyroidal graphene/porous silicon one-dimensional photonic crystal terminated by a gyroidal graphene layer. The gyroidal graphene and porous silicon are used to enhance the figure of merit and sensitivity of the based...

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Autores principales:	Zaky A. Zaky, Arafa H. Aly
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/80fb20cae2724e4b86061e71544c72ca
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spelling	oai:doaj.org-article:80fb20cae2724e4b86061e71544c72ca2021-12-02T17:37:23ZGyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor10.1038/s41598-021-98305-02045-2322https://doaj.org/article/80fb20cae2724e4b86061e71544c72ca2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98305-0https://doaj.org/toc/2045-2322Abstract In this study, the optical Tamm state is excited for the first time using gyroidal graphene/porous silicon one-dimensional photonic crystal terminated by a gyroidal graphene layer. The gyroidal graphene and porous silicon are used to enhance the figure of merit and sensitivity of the based Tamm resonance photonic crystal sensor. By tuning different parameters like the angle of incidence, the thickness of the sample layer, and the thickness of the gyroidal graphene layer, we have reached the optimized sensor. The observation of resonant dips in the reflectance spectra is strong evidence that Tamm plasmon-polaritons exist with higher sensitivity (188.8 THz/RIU) and figure of merit (355,384 RIU−1) than previously reported structures. The proposed sensor recorded sensitivity and FoM higher 38% and 747% respectively than a similar structure composed of graphene sheets and porous silicon.Zaky A. ZakyArafa H. AlyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zaky A. Zaky Arafa H. Aly Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
description	Abstract In this study, the optical Tamm state is excited for the first time using gyroidal graphene/porous silicon one-dimensional photonic crystal terminated by a gyroidal graphene layer. The gyroidal graphene and porous silicon are used to enhance the figure of merit and sensitivity of the based Tamm resonance photonic crystal sensor. By tuning different parameters like the angle of incidence, the thickness of the sample layer, and the thickness of the gyroidal graphene layer, we have reached the optimized sensor. The observation of resonant dips in the reflectance spectra is strong evidence that Tamm plasmon-polaritons exist with higher sensitivity (188.8 THz/RIU) and figure of merit (355,384 RIU−1) than previously reported structures. The proposed sensor recorded sensitivity and FoM higher 38% and 747% respectively than a similar structure composed of graphene sheets and porous silicon.
format	article
author	Zaky A. Zaky Arafa H. Aly
author_facet	Zaky A. Zaky Arafa H. Aly
author_sort	Zaky A. Zaky
title	Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
title_short	Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
title_full	Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
title_fullStr	Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
title_full_unstemmed	Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor
title_sort	gyroidal graphene/porous silicon array for exciting optical tamm state as optical sensor
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/80fb20cae2724e4b86061e71544c72ca
work_keys_str_mv	AT zakyazaky gyroidalgrapheneporoussiliconarrayforexcitingopticaltammstateasopticalsensor AT arafahaly gyroidalgrapheneporoussiliconarrayforexcitingopticaltammstateasopticalsensor
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Gyroidal graphene/porous silicon array for exciting optical Tamm state as optical sensor

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