Author:
Zhou Zhen-Ting ,Yang Li ,Yao Jie ,Ye Ran ,Xu Huan-Huan ,Ye Yong-Hong ,
Abstract
We use nanosphere lithography and thermal evaporation techniques to fabricate multilayer metal-dielectric cone nanoparticle arrays. Scanning electron microscope measurements reveal that the ordered nanoparticles are of triangular shapes. Optical transmittance measurements show that there is a transmittance dip for each sample, and the transmittance dip is caused by the localized surface plasmon resonance of the metal/dielectric particles. With the increase of the number of the metal/dielectric layers of a sample, the position of the transmittance dip of the sample shows a blue-shift. Moreover, the transmittance spectrum and the electric field distribution of the metal/dielectric nanoparticles are simulated by HFSS, and the electric field distribution is used to explain the blue-shift phenomenon.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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