Giant Magnetic Field Enhancement in Hybridized MIM Structures

Salma Alrasheed; Enzo M. Di Fabrizio

doi:10.1109/LPT.2017.2765402

Giant Magnetic Field Enhancement in Hybridized MIM Structures

Salma Alrasheed, Enzo M. Di Fabrizio

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Abstract

We propose numerically an approach to narrow the plasmon linewidth and enhance the magnetic near field intensity at a magnetic hot spot in a hybridized metal-insulatormetal (MIM) structure. First we insert in part of the dielectric layer of the MIM, at its center, another dielectric material of a high refractive index (HRI). This results in an increase in the magnetic near field enhancement of the magnetic plasmon (MP) resonance by 82% compared with the MIM without the HRI material. We then couple this enhanced MP resonance to a propagating surface plasmon polariton (SPP) to achieve a further enhancement of 438%. The strong coupling between the MP and the SPP is demonstrated by the large anti-crossing in the reflection spectra. The resulting maximum magnetic field enhancement at the gap is ~ |H / Hi|² = 3555.

Original language	English (US)
Pages (from-to)	2151-2154
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	29
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2017.2765402
State	Published - Oct 23 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OCRF-2014-CRG3-62140384

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10.1109/LPT.2017.2765402

https://repository.kaust.edu.sa/bitstream/10754/625942/1/08078223.pdf

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title = "Giant Magnetic Field Enhancement in Hybridized MIM Structures",

abstract = "We propose numerically an approach to narrow the plasmon linewidth and enhance the magnetic near field intensity at a magnetic hot spot in a hybridized metal-insulatormetal (MIM) structure. First we insert in part of the dielectric layer of the MIM, at its center, another dielectric material of a high refractive index (HRI). This results in an increase in the magnetic near field enhancement of the magnetic plasmon (MP) resonance by 82% compared with the MIM without the HRI material. We then couple this enhanced MP resonance to a propagating surface plasmon polariton (SPP) to achieve a further enhancement of 438%. The strong coupling between the MP and the SPP is demonstrated by the large anti-crossing in the reflection spectra. The resulting maximum magnetic field enhancement at the gap is ~ |H / Hi|² = 3555.",

author = "Salma Alrasheed and {Di Fabrizio}, {Enzo M.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OCRF-2014-CRG3-62140384",

year = "2017",

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doi = "10.1109/LPT.2017.2765402",

language = "English (US)",

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T1 - Giant Magnetic Field Enhancement in Hybridized MIM Structures

AU - Alrasheed, Salma

AU - Di Fabrizio, Enzo M.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OCRF-2014-CRG3-62140384

PY - 2017/10/23

Y1 - 2017/10/23

N2 - We propose numerically an approach to narrow the plasmon linewidth and enhance the magnetic near field intensity at a magnetic hot spot in a hybridized metal-insulatormetal (MIM) structure. First we insert in part of the dielectric layer of the MIM, at its center, another dielectric material of a high refractive index (HRI). This results in an increase in the magnetic near field enhancement of the magnetic plasmon (MP) resonance by 82% compared with the MIM without the HRI material. We then couple this enhanced MP resonance to a propagating surface plasmon polariton (SPP) to achieve a further enhancement of 438%. The strong coupling between the MP and the SPP is demonstrated by the large anti-crossing in the reflection spectra. The resulting maximum magnetic field enhancement at the gap is ~ |H / Hi|² = 3555.

AB - We propose numerically an approach to narrow the plasmon linewidth and enhance the magnetic near field intensity at a magnetic hot spot in a hybridized metal-insulatormetal (MIM) structure. First we insert in part of the dielectric layer of the MIM, at its center, another dielectric material of a high refractive index (HRI). This results in an increase in the magnetic near field enhancement of the magnetic plasmon (MP) resonance by 82% compared with the MIM without the HRI material. We then couple this enhanced MP resonance to a propagating surface plasmon polariton (SPP) to achieve a further enhancement of 438%. The strong coupling between the MP and the SPP is demonstrated by the large anti-crossing in the reflection spectra. The resulting maximum magnetic field enhancement at the gap is ~ |H / Hi|² = 3555.

UR - http://hdl.handle.net/10754/625942

UR - http://ieeexplore.ieee.org/document/8078223/

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U2 - 10.1109/LPT.2017.2765402

DO - 10.1109/LPT.2017.2765402

M3 - Article

SN - 1041-1135

VL - 29

SP - 2151

EP - 2154

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 24

ER -

Giant Magnetic Field Enhancement in Hybridized MIM Structures

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