Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures
In this paper we present a new magneto-optical surface plasmon resonance (MOSPR) sensor using a dielectric magneto-optical thin film of Ce1Y 2Fe5O12 (CeYIG) and a metallic film of Ag. We demonstrate that by combining the low optical loss of Ag (ε =-62.485+4.331i) and the strong magneto-...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2015-01-01
|
Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.4905949 |
id |
doaj-7ea76d910fba47fab078e4481faf491b |
---|---|
record_format |
Article |
spelling |
doaj-7ea76d910fba47fab078e4481faf491b2020-11-24T21:07:47ZengAIP Publishing LLCAIP Advances2158-32262015-01-0151017118017118-810.1063/1.4905949017501ADVHighly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructuresJun Qin0Longjiang Deng1Jianliang Xie2Tingting Tang3Lei Bi4State Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaState Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaState Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaState Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaState Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China In this paper we present a new magneto-optical surface plasmon resonance (MOSPR) sensor using a dielectric magneto-optical thin film of Ce1Y 2Fe5O12 (CeYIG) and a metallic film of Ag. We demonstrate that by combining the low optical loss of Ag (ε =-62.485+4.331i) and the strong magneto-optical effect of CeYIG (ΦF = 2 × 104 deg/cm) at ∼1000 nm wavelength, a high figure of merit (FoM) for index sensing can be achieved. The device shows a factor of 20 improvement in the index resolution in comparison with ferromagnetic metal based MOSPR sensors at the same wavelength. By carrying out both analytical and numerical simulations, an optimized Ag/CeYIG MOSPR structure with the highest index sensitivity is achieved at the incident light wavelength of 1160 nm and the CeYIG thickness of 25 nm. The enhanced resolution of the DMOSPR sensor has been attributed to both the field enhancement at the sensing interface due to the high index of CeYIG films and, the high magneto-optical figure of merit of the CeYIG near infrared wavelength range. http://dx.doi.org/10.1063/1.4905949 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jun Qin Longjiang Deng Jianliang Xie Tingting Tang Lei Bi |
spellingShingle |
Jun Qin Longjiang Deng Jianliang Xie Tingting Tang Lei Bi Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures AIP Advances |
author_facet |
Jun Qin Longjiang Deng Jianliang Xie Tingting Tang Lei Bi |
author_sort |
Jun Qin |
title |
Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures |
title_short |
Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures |
title_full |
Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures |
title_fullStr |
Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures |
title_full_unstemmed |
Highly sensitive sensors based on magneto-optical surface plasmon resonance in Ag/CeYIG heterostructures |
title_sort |
highly sensitive sensors based on magneto-optical surface plasmon resonance in ag/ceyig heterostructures |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2015-01-01 |
description |
In this paper we present a new magneto-optical surface plasmon resonance (MOSPR) sensor using a dielectric magneto-optical thin film of Ce1Y 2Fe5O12 (CeYIG) and a metallic film of Ag. We demonstrate that by combining the low optical loss of Ag (ε =-62.485+4.331i) and the strong magneto-optical effect of CeYIG (ΦF = 2 × 104 deg/cm) at ∼1000 nm wavelength, a high figure of merit (FoM) for index sensing can be achieved. The device shows a factor of 20 improvement in the index resolution in comparison with ferromagnetic metal based MOSPR sensors at the same wavelength. By carrying out both analytical and numerical simulations, an optimized Ag/CeYIG MOSPR structure with the highest index sensitivity is achieved at the incident light wavelength of 1160 nm and the CeYIG thickness of 25 nm. The enhanced resolution of the DMOSPR sensor has been attributed to both the field enhancement at the sensing interface due to the high index of CeYIG films and, the high magneto-optical figure of merit of the CeYIG near infrared wavelength range.
|
url |
http://dx.doi.org/10.1063/1.4905949 |
work_keys_str_mv |
AT junqin highlysensitivesensorsbasedonmagnetoopticalsurfaceplasmonresonanceinagceyigheterostructures AT longjiangdeng highlysensitivesensorsbasedonmagnetoopticalsurfaceplasmonresonanceinagceyigheterostructures AT jianliangxie highlysensitivesensorsbasedonmagnetoopticalsurfaceplasmonresonanceinagceyigheterostructures AT tingtingtang highlysensitivesensorsbasedonmagnetoopticalsurfaceplasmonresonanceinagceyigheterostructures AT leibi highlysensitivesensorsbasedonmagnetoopticalsurfaceplasmonresonanceinagceyigheterostructures |
_version_ |
1716762093213974528 |