Study of AC electric field effect on the Localized Surface Plasmon Resonance

• Main Authors: Hsiu-mei Hsu, 許秀美
• Other Authors: Hung-Yi Lin
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/29374705569870812739

碩士 === 國立臺南大學 === 材料科學系碩士班 === 98 === The free electrons on the nano-particle surface will give a collective oscillatory behavior as illuminated with light of proper frequency. It is often called localized surface plasmon resonance, LSPR. In this study, we focus on the influence of electric field on the LSPR. A 2D array of Au particles was made by the standard e-beam lithography technique on silicon wafer under examination. The extinction spectrum of the Au array changed when an ac field was applied, which suggests that an alternation of metal particle LSPR frequency by an external ac electric field is possible.