Frequency selective surfaces with nanoparticles unit cell

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Nga Hung Poon
  • Yan Yan
  • Li Zhou
  • Desong Wang

Detail(s)

Original languageEnglish
Pages (from-to)1421-1426
Journal / PublicationMicromachines
Volume6
Issue number10
Publication statusPublished - 2015

Link(s)

Abstract

The frequency selective surface (FSS) is a periodic structure with filtering performance for optical and microwave signals. The general periodic arrays made with patterned metallic elements can act as an aperture or patch on a substrate. In this work, two kinds of materials were used to produce unit cells with various patterns. Gold nanoparticles of 25 nm diameter were used to form periodic monolayer arrays by a confined photocatalytic oxidation-based surface modification method. As the other material, silver gel was used to create multiple layers of silver. Due to the ultra-thin nature of the self-assembled gold nanoparticle monolayer, it is very easy to penetrate the FSS with terahertz radiation. However, the isolated silver islands made from silver gel form thicker multiple layers and contribute to much higher reflectance. This work demonstrated that multiple silver layers are more suitable than gold nanoparticles for use in the fabrication of FSS structures.

Research Area(s)

  • Amine functionalization, Frequency selective surface (FSS), Time-domain spectroscopy (TDS) system

Citation Format(s)

Frequency selective surfaces with nanoparticles unit cell. / Poon, Nga Hung; Yan, Yan; Zhou, Li; Wang, Desong; Chan, Chi-Hou; Roy, Vellaisamy A.L.

In: Micromachines, Vol. 6, No. 10, 2015, p. 1421-1426.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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