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

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Title:	Gap enhancement and transmittance spectra of a periodic bowtie nanoantenna array buried in a silica substrate
Authors:	蔡曜聰;Hu, Chih-Chan;Yang, Wayne;Tsai, Yao-Tsung;Chau, Yuan-Fong
Contributors:	資訊電機學院電機工程學系
Keywords:	Arrays;Dipping;Finite element method;Mathematical analysis;Nanoantenna array;Nanostructure;Resonance dip wavelength;Silicon dioxide;Spectra;Transmittance;Wavelengths
Date:	2014-08-15
Issue Date:	2026-04-23 14:06:55 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： 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. 出版者： Elsevier B.V 出版日期： 2014-08-15 出處： Optics communications, 2014-08, Vol.324, p.227-233 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2014 Elsevier B.V. 識別號： ISSN: 0030-4018 識別號： EISSN: 1873-0310 識別號： DOI: 10.1016/j.optcom.2014.03.062
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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