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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40850
標題: | 金屬層表面電偶極激發侷限表面電漿子特性研究 Study on the Characteristics of Dipole-excited Localized Surface Plasmon on a Metal Layer Surface |
作者: | Chung-Wei Shen 沈昌煒 |
指導教授: | 楊英杰(Ying-Jay Yang) |
關鍵字: | 表面電漿子,侷限表面電漿子, Surface Plasmon,Localized Surface Plasmon, |
出版年 : | 2008 |
學位: | 碩士 |
摘要: | First, we study the emission characteristics of the dipole coupling system with a localized surface plasmon (LSP) based on the boundary-integral-equation method (BIEM). Then, we try to explain the emission phenomenon by evaluating the mode pattern, phase distribution, and dispersion curve. Also, we calculate the angle-dependent emission to confirm this result. Second, the simulation results of a dipole coupling system with surface plasmon (SP) induced on a metal/dielectric interface of a single groove (SG) plus a grating structure are demonstrated. With the SG structure, the dipole can effectively couple energy into an SP feature, which has a mixed nature of LSP and surface plasmon polariton (SPP). The SPP energy is confined by the grating structure with its period about one-half the period of the SPP propagating field distribution. With such a cavity configuration, the SPP energy can be well preserved. Both the dipole-SP coupling behaviors in the frequency and time domains are numerically illustrated. The results are useful for designing a metal/dielectric interface nanostructure for implementing an SPASER (surface plasmon amplification by stimulated emission of radiation) |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40850 |
全文授權: | 有償授權 |
顯示於系所單位: | 電子工程學研究所 |
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