Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

Mohammed Gamal; Ishac Kandas; Hussein Badran; Ali Hajjiah; Mufasila Muhammed; Nader Shehata

doi:10.3390/nano11081928

Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

Mohammed Gamal, Ishac Kandas, Hussein Badran, Ali Hajjiah, Mufasila Muhammed, Nader Shehata

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Abstract

This paper investigates the spontaneous decay rate of elliptical plasmonic nanostructures. The refractive index was analyzed using the effective medium theory (EMT). Then, the polarizability, spontaneous radiative, non-radiative decay rate, and electric field enhancement factor were characterized for the targeted elliptical nanostructures at different aspect ratios. All of the optical analyses were analyzed at different distances between the excited fluorescent coupled atom and the plasmonic nanostructure (down to 100 nm). This work is promising in selecting the optimum elliptical nanostructure according to the required decay rates for optical conversion efficiency control in energy harvesting for solar cells and optical sensing applications.

Original language	English
Pages (from-to)	1-18
Number of pages	18
Journal	Nanomaterials
Volume	11
Issue number	8
Early online date	27 Jul 2021
DOIs	https://doi.org/10.3390/nano11081928
Publication status	Published online - 27 Jul 2021

Data Access Statement

Data is contained within the article or Supplementary Materials.

Keywords

decay rate
plasmonic nanostructures
effective medium theory
ellipsoids
moth-eye

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10.3390/nano11081928

nanomaterials-11-01928-v2Final published version, 4.94 MBLicence: CC BY

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title = "Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory",

abstract = "This paper investigates the spontaneous decay rate of elliptical plasmonic nanostructures. The refractive index was analyzed using the effective medium theory (EMT). Then, the polarizability, spontaneous radiative, non-radiative decay rate, and electric field enhancement factor were characterized for the targeted elliptical nanostructures at different aspect ratios. All of the optical analyses were analyzed at different distances between the excited fluorescent coupled atom and the plasmonic nanostructure (down to 100 nm). This work is promising in selecting the optimum elliptical nanostructure according to the required decay rates for optical conversion efficiency control in energy harvesting for solar cells and optical sensing applications.",

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AU - Gamal, Mohammed

AU - Kandas, Ishac

AU - Badran, Hussein

AU - Hajjiah, Ali

AU - Muhammed, Mufasila

AU - Shehata, Nader

PY - 2021/7/27

Y1 - 2021/7/27

N2 - This paper investigates the spontaneous decay rate of elliptical plasmonic nanostructures. The refractive index was analyzed using the effective medium theory (EMT). Then, the polarizability, spontaneous radiative, non-radiative decay rate, and electric field enhancement factor were characterized for the targeted elliptical nanostructures at different aspect ratios. All of the optical analyses were analyzed at different distances between the excited fluorescent coupled atom and the plasmonic nanostructure (down to 100 nm). This work is promising in selecting the optimum elliptical nanostructure according to the required decay rates for optical conversion efficiency control in energy harvesting for solar cells and optical sensing applications.

AB - This paper investigates the spontaneous decay rate of elliptical plasmonic nanostructures. The refractive index was analyzed using the effective medium theory (EMT). Then, the polarizability, spontaneous radiative, non-radiative decay rate, and electric field enhancement factor were characterized for the targeted elliptical nanostructures at different aspect ratios. All of the optical analyses were analyzed at different distances between the excited fluorescent coupled atom and the plasmonic nanostructure (down to 100 nm). This work is promising in selecting the optimum elliptical nanostructure according to the required decay rates for optical conversion efficiency control in energy harvesting for solar cells and optical sensing applications.

KW - decay rate

KW - plasmonic nanostructures

KW - effective medium theory

KW - ellipsoids

KW - moth-eye

UR - https://doi.org/10.3390/nano11081928

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DO - 10.3390/nano11081928

M3 - Article

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EP - 18

JO - Nanomaterials

JF - Nanomaterials

IS - 8

ER -

Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

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Keywords

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