Multifunctional and multispectral polarization converter and checkerboard metasurface design with low infrared emissivity

Optics Express, Journal Year: 2024, Volume and Issue: 32(16), P. 28058 - 28058

Published: July 10, 2024

With the continuous development of detection technology, single technologies such as radar and infrared (IR) can no longer meet current needs. The design metamaterials is gradually moving towards multispectral compatible design. In this work, a polarization converter with low IR emissivity checkerboard metasurface radar-IR bi-stealth were proposed. filling rate indium-tin-oxide(ITO) increased to reduce without affecting conversion efficiency. addition, based on cross section (RCS) reduction theory composed units, broadband RCS structure designed analyzed. A sample was fabricated microwave characteristics measured. numerical simulation results are in good agreement measurement results. show that (PCR) higher than 90% frequency range 7.98-12.02 GHz, axial ratio (AR) between 0.5 2 6.92-7.56 GHz 12.48-15.78 for proposed converter. exceeded 10 dB 7.7-11.8 GHz. Meanwhile, less 0.3 8-14 µm exhibits optical transparency. This indicates potential application multifunctional materials.

Language: Английский

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FSS Absorbing Metamaterial Based on Bending Structure

Journal of Sensor Technology and Application, Journal Year: 2024, Volume and Issue: 12(04), P. 610 - 621

Published: Jan. 1, 2024

Language: Английский

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Photon-assisted tunnel rectenna for solar energy harvesting

Optics Express, Journal Year: 2024, Volume and Issue: 32(17), P. 29587 - 29587

Published: July 26, 2024

In this work, we introduce a solar rectenna that is combined with periodic subwavelength spiral antenna and metal-oxide-semiconductor photon-assisted tunneling diode. We obtain spectral absorption electromagnetic field distributions by numerical simulations calculate the current densities generated rectenna. The results indicate broadband peak value over 0.99 achieved in range of 400-2500 nm. Additionally, figure merit for electric enhancement reaches 10

Language: Английский

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V O2 assisted temperature tunable wideband terahertz absorber as a biosensor

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 326, P. 129858 - 129858

Published: Oct. 1, 2024

Language: Английский

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Ultra-broadband Perfect Metamaterial Absorber for Solar Energy Harvesting

Plasmonics, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

Language: Английский

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