Plasmonic perfect absorber based on metal nanorod arrays connected with veins
We propose a plasmonic perfect absorber (PPA) based on metal nanorod arrays with the connected veins for ultra-sensitive refractive index (RI) sensing applications in the near-infrared region. The physical origin is explained through the absorptance/reflectance spectra, distribution of electric/magn...
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doaj-55c9e34a0a9447f591b6800840d6a83b2020-11-25T01:45:05ZengElsevierResults in Physics2211-37972019-12-0115Plasmonic perfect absorber based on metal nanorod arrays connected with veinsYuan-Fong Chou Chau0Chung-Ting Chou Chao1Hung Ji Huang2Usman Anwar3Chee Ming Lim4Nyuk Yoong Voo5Abdul Hanif Mahadi6N.T.R.N. Kumara7Hai-Pang Chiang8Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei Darussalam; Corresponding authors at: Institute of Optoelectronic Sciences, National Taiwan Ocean University, No. 2 Pei-Ning Rd., 202 Keelung, Taiwan (H.-P. Chiang).Department of Physics, Fu Jen Catholic University, New Taipei City, TaiwanTaiwan Instrument Research Institute, National Applied Research Laboratories, TaiwanFaulty of Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei DarussalamCentre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei DarussalamFaulty of Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei DarussalamCentre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei DarussalamCentre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei DarussalamInstitute of Optoelectronic Sciences, National Taiwan Ocean University, No. 2 Pei-Ning Rd., 202 Keelung, Taiwan; Institute of Physics, Academia Sinica, Taipei 11529, Taiwan; Corresponding authors at: Institute of Optoelectronic Sciences, National Taiwan Ocean University, No. 2 Pei-Ning Rd., 202 Keelung, Taiwan (H.-P. Chiang).We propose a plasmonic perfect absorber (PPA) based on metal nanorod arrays with the connected veins for ultra-sensitive refractive index (RI) sensing applications in the near-infrared region. The physical origin is explained through the absorptance/reflectance spectra, distribution of electric/magnetic field intensity, surface charge density, height and gap distance. The designed PPA can constitute a cavity resonance center and serve as a plasmonic sensor. There is a huge difference of absorptance and reflectance between the case with and without veins due to the vein effect has a dominant influence on plasmon resonance in the proposed PPA. Simulation results show that the absorptance (A) of the proposed PPA is nearly perfect (A = 99.67%) which is about 1332.49 times enhancement compared to its counterpart without the connected veins (A = 0.075%). The calculated sensitivity, figure of merit and quality factor can be achieved up to 800.00 nm/RIU (RIU is the refractive index unit), 12.17 (RIU−1) and 14.78, respectively.http://www.sciencedirect.com/science/article/pii/S2211379719320182 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuan-Fong Chou Chau Chung-Ting Chou Chao Hung Ji Huang Usman Anwar Chee Ming Lim Nyuk Yoong Voo Abdul Hanif Mahadi N.T.R.N. Kumara Hai-Pang Chiang |
spellingShingle |
Yuan-Fong Chou Chau Chung-Ting Chou Chao Hung Ji Huang Usman Anwar Chee Ming Lim Nyuk Yoong Voo Abdul Hanif Mahadi N.T.R.N. Kumara Hai-Pang Chiang Plasmonic perfect absorber based on metal nanorod arrays connected with veins Results in Physics |
author_facet |
Yuan-Fong Chou Chau Chung-Ting Chou Chao Hung Ji Huang Usman Anwar Chee Ming Lim Nyuk Yoong Voo Abdul Hanif Mahadi N.T.R.N. Kumara Hai-Pang Chiang |
author_sort |
Yuan-Fong Chou Chau |
title |
Plasmonic perfect absorber based on metal nanorod arrays connected with veins |
title_short |
Plasmonic perfect absorber based on metal nanorod arrays connected with veins |
title_full |
Plasmonic perfect absorber based on metal nanorod arrays connected with veins |
title_fullStr |
Plasmonic perfect absorber based on metal nanorod arrays connected with veins |
title_full_unstemmed |
Plasmonic perfect absorber based on metal nanorod arrays connected with veins |
title_sort |
plasmonic perfect absorber based on metal nanorod arrays connected with veins |
publisher |
Elsevier |
series |
Results in Physics |
issn |
2211-3797 |
publishDate |
2019-12-01 |
description |
We propose a plasmonic perfect absorber (PPA) based on metal nanorod arrays with the connected veins for ultra-sensitive refractive index (RI) sensing applications in the near-infrared region. The physical origin is explained through the absorptance/reflectance spectra, distribution of electric/magnetic field intensity, surface charge density, height and gap distance. The designed PPA can constitute a cavity resonance center and serve as a plasmonic sensor. There is a huge difference of absorptance and reflectance between the case with and without veins due to the vein effect has a dominant influence on plasmon resonance in the proposed PPA. Simulation results show that the absorptance (A) of the proposed PPA is nearly perfect (A = 99.67%) which is about 1332.49 times enhancement compared to its counterpart without the connected veins (A = 0.075%). The calculated sensitivity, figure of merit and quality factor can be achieved up to 800.00 nm/RIU (RIU is the refractive index unit), 12.17 (RIU−1) and 14.78, respectively. |
url |
http://www.sciencedirect.com/science/article/pii/S2211379719320182 |
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