A Simple and High-performance Platform for Refractive Index Sensing based on Plasmonic Metal Disks on a Metal Mirror

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A Simple and High-performance Platform for Refractive Index Sensing based on Plasmonic Metal Disks on a Metal Mirror. / Liu, Xianchao; Ma, Rui; Sutherland, Duncan; Wang, Jun.

In: IOP Conference Series: Materials Science and Engineering, Vol. 484, No. 1, 012030, 03.2019.

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Liu, Xianchao ; Ma, Rui ; Sutherland, Duncan ; Wang, Jun. / A Simple and High-performance Platform for Refractive Index Sensing based on Plasmonic Metal Disks on a Metal Mirror. In: IOP Conference Series: Materials Science and Engineering. 2019 ; Vol. 484, No. 1.

Bibtex

@inproceedings{98bc5d4d01954f779395e957e3b6b1dd,
title = "A Simple and High-performance Platform for Refractive Index Sensing based on Plasmonic Metal Disks on a Metal Mirror",
abstract = "Numerical simulations are used to study light interactions with a platform composed of arrays of stacked metal and spacer dielectric disks on a continuous Au film. Tunable and high absorption is obtained near 1.6 μm by adjusting the thickness of the dielectric disks. Nearly perfect-absorption remains for a wide range of disk diameters. The near-perfect absorption is attributed to a magnetic resonance within the dielectric disks (combined with electric resonance at the metal disks) inducing the platform response to incident light. In addition, the resonance response to environment is more sensitive than that of metal disks on dielectric/metal films. Furthermore, when the diameter of the dielectric disks is reduced, the local electromagnetic field is more exposed and the refractive index sensitivity (RIS) increases to 1133nm/RIU (refractive index unit). The method is simple and effective to improve RIS of sandwich plasmonic structures and will be adopted in various plasmonic devices.",
author = "Xianchao Liu and Rui Ma and Duncan Sutherland and Jun Wang",
year = "2019",
month = mar,
doi = "10.1088/1757-899X/484/1/012030",
language = "English",
volume = "484",
journal = "I O P Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "Institute of Physics Publishing Ltd.",
number = "1",
note = "2018 5th Annual International Conference on Material Engineering and Application, ICMEA 2018 ; Conference date: 14-12-2018 Through 16-12-2018",

}

RIS

TY - GEN

T1 - A Simple and High-performance Platform for Refractive Index Sensing based on Plasmonic Metal Disks on a Metal Mirror

AU - Liu, Xianchao

AU - Ma, Rui

AU - Sutherland, Duncan

AU - Wang, Jun

PY - 2019/3

Y1 - 2019/3

N2 - Numerical simulations are used to study light interactions with a platform composed of arrays of stacked metal and spacer dielectric disks on a continuous Au film. Tunable and high absorption is obtained near 1.6 μm by adjusting the thickness of the dielectric disks. Nearly perfect-absorption remains for a wide range of disk diameters. The near-perfect absorption is attributed to a magnetic resonance within the dielectric disks (combined with electric resonance at the metal disks) inducing the platform response to incident light. In addition, the resonance response to environment is more sensitive than that of metal disks on dielectric/metal films. Furthermore, when the diameter of the dielectric disks is reduced, the local electromagnetic field is more exposed and the refractive index sensitivity (RIS) increases to 1133nm/RIU (refractive index unit). The method is simple and effective to improve RIS of sandwich plasmonic structures and will be adopted in various plasmonic devices.

AB - Numerical simulations are used to study light interactions with a platform composed of arrays of stacked metal and spacer dielectric disks on a continuous Au film. Tunable and high absorption is obtained near 1.6 μm by adjusting the thickness of the dielectric disks. Nearly perfect-absorption remains for a wide range of disk diameters. The near-perfect absorption is attributed to a magnetic resonance within the dielectric disks (combined with electric resonance at the metal disks) inducing the platform response to incident light. In addition, the resonance response to environment is more sensitive than that of metal disks on dielectric/metal films. Furthermore, when the diameter of the dielectric disks is reduced, the local electromagnetic field is more exposed and the refractive index sensitivity (RIS) increases to 1133nm/RIU (refractive index unit). The method is simple and effective to improve RIS of sandwich plasmonic structures and will be adopted in various plasmonic devices.

UR - http://www.scopus.com/inward/record.url?scp=85063779154&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/484/1/012030

DO - 10.1088/1757-899X/484/1/012030

M3 - Conference article

AN - SCOPUS:85063779154

VL - 484

JO - I O P Conference Series: Materials Science and Engineering

JF - I O P Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012030

T2 - 2018 5th Annual International Conference on Material Engineering and Application, ICMEA 2018

Y2 - 14 December 2018 through 16 December 2018

ER -