Frequency selective surfaces with nanoparticles unit cell
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
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Detail(s)
Original language | English |
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Pages (from-to) | 1421-1426 |
Journal / Publication | Micromachines |
Volume | 6 |
Issue number | 10 |
Publication status | Published - 2015 |
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DOI | DOI |
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Attachment(s) | Documents
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84946401806&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(24e4ab14-681c-4c30-aed0-b5f5a22b73f0).html |
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 et al.
In: Micromachines, Vol. 6, No. 10, 2015, p. 1421-1426.
In: Micromachines, Vol. 6, No. 10, 2015, p. 1421-1426.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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