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Fabrication of multilayer metal-dielectric nanoparticles and their optical properties

Zhou Zhen-Ting Yang Li Yao Jie Ye Ran Xu Huan-Huan Ye Yong-Hong

Fabrication of multilayer metal-dielectric nanoparticles and their optical properties

Zhou Zhen-Ting, Yang Li, Yao Jie, Ye Ran, Xu Huan-Huan, Ye Yong-Hong
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  • Abstract views:  564
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  • Received Date:  23 November 2012
  • Accepted Date:  03 June 2013
  • Published Online:  20 September 2013

Fabrication of multilayer metal-dielectric nanoparticles and their optical properties

  • 1. School of Physical Science and Technology, Nanjing Normal University, Nanjing 210046, China
Fund Project:  Project supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20093207110012).

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.

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