抄録
We visualized the enhanced optical field distributions in one-dimensional linear array structures of gold nanospheres by using scanning near-field optical microscopy. The characteristic field distribution depends on the chain length of the one-dimensional structures. The distribution of optical field is reproduced qualitatively by model calculations based upon finite-difference time-domain (FDTD) method. From the analysis, we have found that the characteristic distribution of the enhanced field arises from interparticle interactions, which cause propagation of the plasmon excitation in the inner part of the linear array, and trapping of it by a localized mode at the edges.
本文言語 | English |
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ページ(範囲) | 4265-4269 |
ページ数 | 5 |
ジャーナル | Physical Chemistry Chemical Physics |
巻 | 15 |
号 | 12 |
DOI | |
出版ステータス | Published - 2013 3月 28 |
ASJC Scopus subject areas
- 物理学および天文学(全般)
- 物理化学および理論化学