表面電漿共振效應之於一對有限高度實心奈米金柱與一對有限高度殼核奈米金柱之近場光學特性研究

Study of the Near-Field Optic Properties of Surface Plasmon Resonance Effects on a Pair of Finite Height Gold Nanorod and a Pair of Finite Height Core-Shell Gold Nanorod

周趙遠鳳(Yuan-Fong Chou Chau) ； 鄭祺耀(Ci-Yao Jheng) ； 楊文圳(Wayne Yang) ； 孫郁興(Yuh-Sien Sun) ； 蔡蕙逢(Hui-Feng Tsai) ； 李勇昇(Yung-Sheng Lee)

《健行學報》 33卷3期 (2013/07) Pp. 1-16

摘要

在本論文中，我們以有限元素法針對三維數值模型進行模擬分析，研究一對有限高度之實心奈米金柱與一對有限高度之殼核奈米金柱之近場光學特性與表面電漿共振效應。分別探討它們的近場強度、殼核厚度、穿透率與入射波長之函數關係。除此之外，電荷分佈、電場流線、能流方向、分量電場場型及其相關應用亦於本文中加以探討。經由數值模擬結果發現，以一對有限高度之殼核奈米金柱與入射光交互作用後之結果，對於侷域表面電漿共振於感測器與其他光電元件之應用上至為重要。

關鍵字

近場光學 ； 表面電漿共振 ； 有限元素法 ； 分量電場 ； 電場流線

並列摘要

In this paper, we numerically investigate the near-field optic properties and surface plasmon resonance effects on a pair of finite height gold nanorod and a pair of finite height core-shell gold nanorod by means of finite element method with three-dimensional calculations. Numerical results of resonant wavelengths corresponding to the effects of different illumination wavelengths, thickness of core-shell, electric field components, electrical field stream lines, charge distributions, energy flow, and the core relative permittivities of a pair of finite height core-shell gold nanorod are also reported. These results are crucial in designing localized surface plasmon resonance (LSPR) sensors and other optical devices based on a pair of finite height core-shell gold nanorod interacting with an incident light.

並列關鍵字

near-field optic ； surface plasmon resonance ； finite-element method ； electric field components ； electrical field stream lines