https://scholars.lib.ntu.edu.tw/handle/123456789/625445
標題: | Localized surface plasmon resonance and plasmon hybridization in contour bowtie nanoantenna | 作者: | Nien L.-W Chao B.-K Ho H.-C Li J.-H CHUN-HWAY HSUEH |
公開日期: | 2015 | 卷: | Part F132-JSAP 2015 | 來源出版物: | Optics InfoBase Conference Papers | 摘要: | Single molecule detection via surface-enhanced Raman scattering (SERS) technique with the help of enhanced electromagnetic field near the metallic nanostructure has attracted much attention recently. A large electric field enhancement can be produced in the gap of a bowtie-shaped antenna by exciting the localized surface plasmon resonance (LSPR) [1]. Also, core-shell particles, tunable plas-monic spheres consist of multilayer metallic shells, have been studied widely due to the extraordinary sensing abilities [2]. However, there are few works on the advantage of combining the enhanced electric field in bowtie antenna gap with the great sensitivity of core-shell structure. The purpose of this work is to perform simulations on a model system of contour bowtie antenna to investigate the critical dimension to induce the additional enhancement by examining the resonance wavelength and the local electromagnetic field enhancement dependence on bowtie size and contour thickness. In addition, a plasmon hybridization model was proposed to explain the simulation results. © 2015 Japan Society of Applied Physics, Optical Society of America. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077197656&partnerID=40&md5=b1e003975d746b17f6301392268cbfcb https://scholars.lib.ntu.edu.tw/handle/123456789/625445 |
SDG/關鍵字: | Plasmons; Bow tie; Localized surface plasmon resonance; Nanoantennae; Plasmon hybridization; Nanoantennas |
顯示於: | 材料科學與工程學系 |
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