Study the enhancement of near electro-magnetic field via plasmonic effects using finite-difference time-domain method and near-field scanning optical microscopy

C. H. Huang*, C. Y. Lin, S. J. Chen

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In this study, we use the finite-difference time-domain (FDTD) method, the attenuated-total-reflection (ATR) fluorescent and the near field scanning optical microscopy (NSOM) to investigate into the enhancement of near electro-magnetic field via plasmonic effects. In order to enhance the near electro-magnetic (EM) field on the sensing surface, a metal particle layer is added under the Kretschmann configuration of the conventional surface plasmon resonance (SPR) sensor based on the attenuated-total-reflection method. The affiliation by the simulation and experimental results can help us to understand the mechanisms of surface plasmons and particle plasmons on the sensor surface, and the effects of the EM field enhancement are classified as the surface plasmon effect, particle plasmon effect, interparticle coupling effect, and gap mode effect. With the helps of the both techniques, we can understand more about the plasmonic effects in order to deign a novel ultrahigh-resolution plasmonic biosensor.

原文English
主出版物標題Plasmonics
主出版物子標題Metallic Nanostructures and their Optical Properties IV
DOIs
出版狀態Published - 30 十一月 2006
事件Plasmonics: Metallic Nanostructures and their Optical Properties IV - San Diego, CA, United States
持續時間: 13 八月 200616 八月 2006

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
6323
ISSN(列印)0277-786X

Conference

ConferencePlasmonics: Metallic Nanostructures and their Optical Properties IV
國家/地區United States
城市San Diego, CA
期間13/08/0616/08/06

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