Modulation of surface plasmon wave by photo-induced refractive index changes of CdSe quantum dots

Horng Shyang Chen*, Jyh Yang Wang, Sheng Shiuan Yeh, Chii Dong Chen, Hung Yi Lin

*Corresponding author for this work

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

We demonstrate an all-optical modulation of surface plasmon resonance by photo-irradiation induced dielectric constant change of CdSe quantum dots on the gold surface. The dipole-dipole interaction between the surface plasmon and the photo-induced excitons in the dots gives rise to a shift in the surface plasmon resonance peak. This shift is found to sensitively reflect a tiny change in the dielectric constant, which is useful for investigating the nonlinear effect in active plasmonic components.

原文English
文章編號011102
期刊Applied Physics Letters
100
發行號1
DOIs
出版狀態Published - 2 一月 2012

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