Abstract
Proof of concept of a new real-time metasurface sensor for micropoison monitoring in aqueous solutions is proposed in this study. The sensor comprises a perfect absorber metasurface and gold nanoparticle layer on the front side of it. Frequency-domain terahertz spectroscopy system was used to measure the resonance frequency shift due to the presence of the micropoison. The perfect absorber metasurface sensor was fabricated using a double-sided FR4 substrate printed board circuit, which is very inexpensive. A significant increase in the metasurface sensor sensitivity was achieved by adding a gold nanoparticle layer to the gap of the double split rectangular resonator on the front side of the metasurface sensor.
| Original language | English |
|---|---|
| Article number | 1279 |
| Journal | Sensors |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Feb 2022 |
| Externally published | Yes |
Keywords
- Double split rectangular resonator
- Frequency-domain spectroscopy
- Gold nanoparticles
- Metasurface
- Micropoisons in aqueous solutions
ASJC Scopus subject areas
- Analytical Chemistry
- Information Systems
- Atomic and Molecular Physics, and Optics
- Biochemistry
- Instrumentation
- Electrical and Electronic Engineering
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