High sensitivity five band tunable metamaterial absorption device based on block like Dirac semimetals

Optics Communications, Journal Year: 2024, Volume and Issue: 569, P. 130816 - 130816

Published: June 24, 2024

Language: Английский

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Tunable metamaterial absorption device based on Fabry–Perot resonance as temperature and refractive index sensing

Optics and Lasers in Engineering, Journal Year: 2024, Volume and Issue: 181, P. 108368 - 108368

Published: June 12, 2024

Language: Английский

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Ultra-broadband and wide-angle plasmonic light absorber based on all-dielectric gallium arsenide (GaAs) metasurface in visible and near-infrared region

Results in Physics, Journal Year: 2024, Volume and Issue: 58, P. 107509 - 107509

Published: Feb. 21, 2024

High-performance and cost-effective broadband light absorbers are crucial for various optical applications, including solar energy harvesting, thermophotovoltaic systems, integrated photoelectric devices. In this study, an ultra-broadband wide-angle plasmonic absorber (PLA) based on all-dielectric gallium arsenide (GaAs) metasurface in the visible near-infrared regions is proposed numerically investigated. The unit-cell of PLA consisted GaAs cylinder resonator (CR) adhered ultra-thin spacer layer backed with a tungsten (W) substrate. Numerical simulation results show that absorption peak up to 99.85 %, 99.9 % 99.98 at 0.452 μm, 0.712 μm 1.596 respectively. addition, strong over 90 also can be achieved from 0.39 2.09 relative bandwidth 137.1 %. ultrabroadband further demonstrated by equivalent circuit model (ECM), which displays excellent agreement full-wave numerical performed using finite element method (FEM). simulated electromagnetic (EM) field distributions reveal designed mainly excited propagating surface plasmon (PSP), located (LSP), cavity resonance modes combined coupling effect between adjacent CRs. polarization-insensitive wide incident angles both transverse electric (TE) magnetic (TM) modes. properties adjusted varying geometric parameters unit-cell. achieves remarkable short-circuit current density 64.75569 mA/cm2 exhibits nearly perfect trapping due effective multiple resonances, resulting enhanced photovoltaic performance. Thus, potential application photodetectors, thermal imaging, harvesting

Language: Английский

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A wide-band solar absorber based on tungsten nano-strip resonator group and graphene for near-ultraviolet to near-infrared region

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: 142, P. 110843 - 110843

Published: Jan. 24, 2024

Language: Английский

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Analysis of solar absorption and thermal radiation properties of a multi-layer structure

International Journal of Thermal Sciences, Journal Year: 2024, Volume and Issue: 203, P. 109172 - 109172

Published: May 24, 2024

Language: Английский

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Perfect adjustable absorber based on Dirac semi-metal high sensitivity four-band high frequency detection

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 174, P. 110650 - 110650

Published: Jan. 30, 2024

Language: Английский

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Challenges and Opportunities for Passive Thermoregulation

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(34)

Published: June 26, 2024

Abstract The unsustainable nature of energy‐intensive and environmentally unfriendly traditional air conditioning systems, compacted with recent climate change effects, show an urgent need for more sustainable efficient thermoregulation solutions. Innovations in passive daytime radiative coolers (PDRCs) selective solar absorbers (SSAs), which utilize natural resources, the “cold” outer space “hot” sun from sky, offer friendly cost‐effective alternative. However, various factors significantly impede commercial viability these technologies, such as lack emphasis on advancements practical application, challenge reversible functionality between PDRCs SSAs, inconsistent performance evaluation, absence effective mass production strategies. Here current challenges future development trends PDRC SSA‐aided innovation are discussed. Specifically, opportunities relating to application conditions, evaluation parameter standardization, strategies considered large‐scale production, all critical realizing full potential SSAs.

Language: Английский

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Design and optimization of MXene based solar absorber for ultra-broadband solar energy absorption

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 111986 - 111986

Published: Jan. 1, 2025

Language: Английский

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Ultra-high sensitivity surface plasmon U-channel photonic crystal fiber for hemoglobin sensing

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 366, P. 115053 - 115053

Published: Jan. 19, 2024

Language: Английский

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Wideband, polarization-insensitive rectangular-shaped with thin wire MXene-based resonator solar absorber for solar energy harvesting application

International Journal of Thermal Sciences, Journal Year: 2024, Volume and Issue: 204, P. 109249 - 109249

Published: July 8, 2024

Language: Английский

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