Open AccessFabrication of multilayer metal-dielectric nanoparticles and their optical properties
Author(s) -
Zhou Zhen-Ting,
Yang Li,
Jie Yao,
Ran Ye,
Hui Xu,
YongHong Ye
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.188104
Subject(s) - materials science , transmittance , dielectric , surface plasmon resonance , nanoparticle , optics , electric field , evaporation , optoelectronics , nanotechnology , physics , quantum mechanics , thermodynamics
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.