Real-Time Metasurface Sensor for Monitoring Micropoisons in Aqueous Solutions Based on Gold Nanoparticles and Terahertz Spectroscopy

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 measur...

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Published in:Sensors (Basel, Switzerland) Switzerland), 2022-02, Vol.22 (3), p.1279
Main Authors: Abramovich, Amir, Azoulay, Yossi, Rotshild, David
Format: Article
Language:English
Subjects:
Absorbers
Aqueous solutions
Circuit boards
Communication
Design
double split rectangular resonator
Drinking water
Equipment Design
Frequency shift
frequency-domain spectroscopy
Geometry
Gold
gold nanoparticles
Metal Nanoparticles
metasurface
Metasurfaces
micropoisons in aqueous solutions
Monitoring
Nanoparticles
Printed circuits
Radiation
Real time
Sensors
Spectrum analysis
Terahertz frequencies
Terahertz Spectroscopy
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cited_by cdi_FETCH-LOGICAL-c508t-4a5fc45a137589e0afade5256b3424ea22de3228ea7ed66708d81a65e09f9fb23
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container_title Sensors (Basel, Switzerland)
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creator Abramovich, Amir
Azoulay, Yossi
Rotshild, David
description 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.
doi_str_mv 10.3390/s22031279
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source NCBI_PubMed Central（免费）; ProQuest - Publicly Available Content Database
subjects Absorbers
Aqueous solutions
Circuit boards
Communication
Design
double split rectangular resonator
Drinking water
Equipment Design
Frequency shift
frequency-domain spectroscopy
Geometry
Gold
gold nanoparticles
Metal Nanoparticles
metasurface
Metasurfaces
micropoisons in aqueous solutions
Monitoring
Nanoparticles
Printed circuits
Radiation
Real time
Sensors
Spectrum analysis
Terahertz frequencies
Terahertz Spectroscopy
title Real-Time Metasurface Sensor for Monitoring Micropoisons in Aqueous Solutions Based on Gold Nanoparticles and Terahertz Spectroscopy
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