Vanadium Dioxide-Based Terahertz Metamaterials for Non-Contact Temperature Sensor DOI Creative Commons
Jing Leng, Yong Gong, Li Luo

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(12), P. 1148 - 1148

Published: Dec. 6, 2024

Temperature sensors play important roles in wide-spreading human activities. The non-contact method of using temperature offers significant advantages but faces challenges detection precision. In this work, a double-layer asymmetric terahertz (THz) metamaterial combined with phase transition oxide was proposed to realize sensor high sensitivity. exhibited band-stop filtering effects the simulated transmission spectra. changes induced reversible VO2, resulting altered conductivity. numerical results indicated that S21 parameter increases from −44.33 dB −4.78 at frequency 1.22 THz as conductivity VO2 film 10 5000 S/m, achieving modulation depth 89%. addition, 86 nm thick underwent range 54.93 °C 66.93 °C, sensitivity 1.82 dB/°C for sensing. This work provided great insights into development metamaterials based on high-precision measurement.

Language: Английский

Optimal Design of Novel Plasmonic Antenna Based Label Free Biomedical Sensor using Firefly Algorithm DOI

Rudra Bhanu Satpathy,

G. P. Ramesh,

Suthendran Kannan

et al.

Optik, Journal Year: 2024, Volume and Issue: unknown, P. 172139 - 172139

Published: Nov. 1, 2024

Language: Английский

Citations

0
Vanadium Dioxide-Based Terahertz Metamaterials for Non-Contact Temperature Sensor DOI Creative Commons
Jing Leng, Yong Gong, Li Luo

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(12), P. 1148 - 1148

Published: Dec. 6, 2024

Temperature sensors play important roles in wide-spreading human activities. The non-contact method of using temperature offers significant advantages but faces challenges detection precision. In this work, a double-layer asymmetric terahertz (THz) metamaterial combined with phase transition oxide was proposed to realize sensor high sensitivity. exhibited band-stop filtering effects the simulated transmission spectra. changes induced reversible VO2, resulting altered conductivity. numerical results indicated that S21 parameter increases from −44.33 dB −4.78 at frequency 1.22 THz as conductivity VO2 film 10 5000 S/m, achieving modulation depth 89%. addition, 86 nm thick underwent range 54.93 °C 66.93 °C, sensitivity 1.82 dB/°C for sensing. This work provided great insights into development metamaterials based on high-precision measurement.

Language: Английский

Citations

0