Tunable optical absorption of dimer nanostructure array achieved by angular evaporation

Xiaoli Yao, Zhen Shi, Chunhui Li, Zhe Kong, Gufei Zhang, Jian Zhang, Xuefeng Zhang

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Dimer nanostructure as a pair of closely-spaced metal nanoparticles supports the localized surface plasmon (LSP) forming in designed area, showing signal enhancement and chirality, and it can offer a fundamental approach to studying the photonic interaction between nanoparticles. Thus an efficient way to realize dimer nanostructures with controllable gap size is important for the study of LSP resonance. In this paper, angle evaporation of Au is utilized to realize the varied dimer gap within tens of nm leading to the efficient adjusting of LSP resonance. Experimental results coupled with theoretical FDTD simulations revealed strong polarization-dependent transmission bands at the adjustable LSP resonance. The theoretical study showed an enhancement of over 2000 times of the localized electrical field intensity confined within dimer gap. Our method is expected to realize large-area LSP nanostructures for the application in metamaterial and chemical sensing.

OriginalsprogEngelsk
Artikelnummer115010
TidsskriftJournal of Micromechanics and Microengineering
Vol/bind28
Udgave nummer11
Antal sider6
ISSN0960-1317
DOI
StatusUdgivet - sep. 2018

Fingeraftryk

Dimers
Light absorption
Nanostructures
Evaporation
Surface plasmon resonance
Metal nanoparticles
Chirality
Metamaterials
Photonics
Polarization
Nanoparticles

Citer dette

Yao, Xiaoli ; Shi, Zhen ; Li, Chunhui ; Kong, Zhe ; Zhang, Gufei ; Zhang, Jian ; Zhang, Xuefeng. / Tunable optical absorption of dimer nanostructure array achieved by angular evaporation. I: Journal of Micromechanics and Microengineering. 2018 ; Bind 28, Nr. 11.
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title = "Tunable optical absorption of dimer nanostructure array achieved by angular evaporation",
abstract = "Dimer nanostructure as a pair of closely-spaced metal nanoparticles supports the localized surface plasmon (LSP) forming in designed area, showing signal enhancement and chirality, and it can offer a fundamental approach to studying the photonic interaction between nanoparticles. Thus an efficient way to realize dimer nanostructures with controllable gap size is important for the study of LSP resonance. In this paper, angle evaporation of Au is utilized to realize the varied dimer gap within tens of nm leading to the efficient adjusting of LSP resonance. Experimental results coupled with theoretical FDTD simulations revealed strong polarization-dependent transmission bands at the adjustable LSP resonance. The theoretical study showed an enhancement of over 2000 times of the localized electrical field intensity confined within dimer gap. Our method is expected to realize large-area LSP nanostructures for the application in metamaterial and chemical sensing.",
keywords = "angle evaporation, dimer nanoantenna, FDTD simulation, surface plasmon resonance",
author = "Xiaoli Yao and Zhen Shi and Chunhui Li and Zhe Kong and Gufei Zhang and Jian Zhang and Xuefeng Zhang",
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Tunable optical absorption of dimer nanostructure array achieved by angular evaporation. / Yao, Xiaoli; Shi, Zhen; Li, Chunhui; Kong, Zhe; Zhang, Gufei; Zhang, Jian; Zhang, Xuefeng.

I: Journal of Micromechanics and Microengineering, Bind 28, Nr. 11, 115010, 09.2018.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Tunable optical absorption of dimer nanostructure array achieved by angular evaporation

AU - Yao, Xiaoli

AU - Shi, Zhen

AU - Li, Chunhui

AU - Kong, Zhe

AU - Zhang, Gufei

AU - Zhang, Jian

AU - Zhang, Xuefeng

PY - 2018/9

Y1 - 2018/9

N2 - Dimer nanostructure as a pair of closely-spaced metal nanoparticles supports the localized surface plasmon (LSP) forming in designed area, showing signal enhancement and chirality, and it can offer a fundamental approach to studying the photonic interaction between nanoparticles. Thus an efficient way to realize dimer nanostructures with controllable gap size is important for the study of LSP resonance. In this paper, angle evaporation of Au is utilized to realize the varied dimer gap within tens of nm leading to the efficient adjusting of LSP resonance. Experimental results coupled with theoretical FDTD simulations revealed strong polarization-dependent transmission bands at the adjustable LSP resonance. The theoretical study showed an enhancement of over 2000 times of the localized electrical field intensity confined within dimer gap. Our method is expected to realize large-area LSP nanostructures for the application in metamaterial and chemical sensing.

AB - Dimer nanostructure as a pair of closely-spaced metal nanoparticles supports the localized surface plasmon (LSP) forming in designed area, showing signal enhancement and chirality, and it can offer a fundamental approach to studying the photonic interaction between nanoparticles. Thus an efficient way to realize dimer nanostructures with controllable gap size is important for the study of LSP resonance. In this paper, angle evaporation of Au is utilized to realize the varied dimer gap within tens of nm leading to the efficient adjusting of LSP resonance. Experimental results coupled with theoretical FDTD simulations revealed strong polarization-dependent transmission bands at the adjustable LSP resonance. The theoretical study showed an enhancement of over 2000 times of the localized electrical field intensity confined within dimer gap. Our method is expected to realize large-area LSP nanostructures for the application in metamaterial and chemical sensing.

KW - angle evaporation

KW - dimer nanoantenna

KW - FDTD simulation

KW - surface plasmon resonance

U2 - 10.1088/1361-6439/aae0be

DO - 10.1088/1361-6439/aae0be

M3 - Journal article

VL - 28

JO - Journal of Micromechanics and Microengineering

JF - Journal of Micromechanics and Microengineering

SN - 0960-1317

IS - 11

M1 - 115010

ER -