Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate

Chih Chan Hu; Wayne Yang; Yao Tsung Tsai; Yuan Fong Chau

doi:10.1016/j.optcom.2014.03.062

Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate

Chih Chan Hu, Wayne Yang, Yao Tsung Tsai, Yuan Fong Chau

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The gap enhancement and transmittance spectra properties of a periodic outline bowtie nanoantenna array (POBNA) which is embedded in a substrate with different depths are numerically investigated by using the finite element method. The surface plasmon resonance (SPR) modes obtained from the embedding cases are quite different from that of the free standing case. Near-field interactions across the bowtie-gaps and POBNA hollows at the localized SPR wavelengths resulted in an increase of magnitude in local field intensity and a redshift of transmittance resonance dip wavelength. The POBNA embedded in a silica substrate can be used as critical elements for nanoscale optical devices.

Original language	English
Pages (from-to)	227-233
Number of pages	7
Journal	Optics Communications
Volume	324
DOIs	https://doi.org/10.1016/j.optcom.2014.03.062
State	Published - 15 Aug 2014

Keywords

Finite element method
Nanoantenna array
Resonance dip wavelength
Transmittance

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10.1016/j.optcom.2014.03.062

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title = "Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate",

abstract = "The gap enhancement and transmittance spectra properties of a periodic outline bowtie nanoantenna array (POBNA) which is embedded in a substrate with different depths are numerically investigated by using the finite element method. The surface plasmon resonance (SPR) modes obtained from the embedding cases are quite different from that of the free standing case. Near-field interactions across the bowtie-gaps and POBNA hollows at the localized SPR wavelengths resulted in an increase of magnitude in local field intensity and a redshift of transmittance resonance dip wavelength. The POBNA embedded in a silica substrate can be used as critical elements for nanoscale optical devices.",

keywords = "Finite element method, Nanoantenna array, Resonance dip wavelength, Transmittance",

author = "Hu, {Chih Chan} and Wayne Yang and Tsai, {Yao Tsung} and Chau, {Yuan Fong}",

note = "Funding Information: The authors acknowledge the financial support from the National Science Council of the Republic of China (Taiwan) under Contracts NSC 102-2112- M-231-001- .",

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T1 - Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate

AU - Hu, Chih Chan

AU - Yang, Wayne

AU - Tsai, Yao Tsung

AU - Chau, Yuan Fong

N1 - Funding Information: The authors acknowledge the financial support from the National Science Council of the Republic of China (Taiwan) under Contracts NSC 102-2112- M-231-001- .

PY - 2014/8/15

Y1 - 2014/8/15

N2 - The gap enhancement and transmittance spectra properties of a periodic outline bowtie nanoantenna array (POBNA) which is embedded in a substrate with different depths are numerically investigated by using the finite element method. The surface plasmon resonance (SPR) modes obtained from the embedding cases are quite different from that of the free standing case. Near-field interactions across the bowtie-gaps and POBNA hollows at the localized SPR wavelengths resulted in an increase of magnitude in local field intensity and a redshift of transmittance resonance dip wavelength. The POBNA embedded in a silica substrate can be used as critical elements for nanoscale optical devices.

AB - The gap enhancement and transmittance spectra properties of a periodic outline bowtie nanoantenna array (POBNA) which is embedded in a substrate with different depths are numerically investigated by using the finite element method. The surface plasmon resonance (SPR) modes obtained from the embedding cases are quite different from that of the free standing case. Near-field interactions across the bowtie-gaps and POBNA hollows at the localized SPR wavelengths resulted in an increase of magnitude in local field intensity and a redshift of transmittance resonance dip wavelength. The POBNA embedded in a silica substrate can be used as critical elements for nanoscale optical devices.

KW - Finite element method

KW - Nanoantenna array

KW - Resonance dip wavelength

KW - Transmittance

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U2 - 10.1016/j.optcom.2014.03.062

DO - 10.1016/j.optcom.2014.03.062

M3 - 期刊論文

AN - SCOPUS:84898655207

VL - 324

SP - 227

EP - 233

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

ER -

Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate

Abstract

Keywords

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