Radiative decay and coupling of surface plasmons on metallic nanohole arrays.
了解表面等子體和外部環境之間的相互作用對表面等子體應用的開發非常重要。我們的研究集中在表面等子體與遠場的耦合,以及表面等子體模之間的耦合。 === 首先,我們研究由表面等子體模式耦合所產生的射衰變的變化。我們以角分辨反射光譜測同孔大小的納米孔陣上的簡併表面等子體模的衰減。對於每個孔的大小,我們觀察到在發生共振耦合的光譜區,衰減速有很大的改變,顯示出暗模和模的形成。耦合模很好地解釋衰變的變化。推導出的耦合常隨著孔直徑的增加而增加。我們也對耦合模一些有趣的特性及衰減變化的微觀起源進探討。 === 第二,我們以偏振分辨反射光譜從二維屬陣射散射。我們發現,反射光譜遵循的法模型可以由耦合模和瓊斯矩陣演算...
Other Authors: | Lo, Hau Yung. |
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Format: | Others |
Language: | English Chinese |
Published: |
2013
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Subjects: | |
Online Access: | http://library.cuhk.edu.hk/record=b5549308 http://repository.lib.cuhk.edu.hk/en/item/cuhk-328563 |
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