A5073595024- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Antenna Design and Analysis
- Energy Harvesting in Wireless Networks
- Antenna Design and Optimization
- Glass properties and applications
- Plasmonic and Surface Plasmon Research
- Optical Network Technologies
- Photonic Crystal and Fiber Optics
- Thermal Radiation and Cooling Technologies
Polytechnic University of Turin
2024
Laboratoire Hubert Curien
2023
Centre National de la Recherche Scientifique
2023
Université Jean Monnet
2023
University of Dhaka
2021-2022
Dhaka University of Engineering & Technology
2021
Abstract Broadband absorbers are required for solar energy harvesting because they efficiently absorb the incident photon in wide-ranging spectrum. To ensure high absorption of photons, metamaterial (MMAs) have been a growing area interest recent years. In this article, an MMA is proposed using metal–insulator–metal (MIM) structure (Ni–SiO 2 –Ni) that shows near-unity broadband wavelengths from 300 to 1600 nm, with 95.77% average and peak 99.999% at 772.82 nm. The polarization insensitive as...
A multi-band, ultrathin, polarization-insensitive, near-perfect metamaterial absorber (PMA) has been proposed and substantiated numerically for solar thermophotovoltaic (STPV) systems which also can be used in some other applications. This kind of currently drawing massive interest throughout the research optics. Especially harvesting absorbers give a huge boost efficiency by intensifying electromagnetic wave. Visible wavelength key focus design so that structure utilize energy proficiently....
Solar spectrum is supposed to be a key source of renewable energy in the form electromagnetic (EM) radiation. For efficiently harnessing this abundant energy, Metamaterial Absorber (MMA) emerges as game-changing tool. Along with solar harvesting, MMA can used biochemical sensors, optical modulators, magnetic resonance imaging, photoelectric detectors, plasmonic etc. In paper, sun shape resonator-based designed three layers materials (W-SiO2-W) and analysed for broadband absorption...
The utilization of solar cells composed ideal metamaterial presents an opportunity to enhance the system's efficiency through efficient absorption incident electromagnetic waves. In this paper, a broad-band absorber (MA) built by three-layer structure W-Polyimide-W was presented in order accomplish goal optimum across whole visible spectrum. has average light trapping 96.33% wavelength range 390-788 nm. MA exhibits polarization insensitivity and demonstrates high wide angles. also shows...
The features of metamaterials are determined by the material's structural order, which allows them to be used in many different fields such as optical sensors, light detection, photon trapping, invisibility cloaking, MRI, and photovoltaic cells. This work presents a metamaterial-based ultrathin absorber composed three layers substances (tungsten, epoxy resin, tungsten) designed for absorbing visible solar radiation using Finite Integration Technique. exhibits an absorbance vicinity unity...
A metamaterial-based ultra-thin dual-band absorber is designed in this work using three layers of materials (Copper - FR-4 Copper) for microwave absorption which the resonance band lies on 5.3GHz (C-band) and $13.4 \mathrm{GHz}(\mathrm{Ku}-$ band), with a bandwidth 0.09GHz 0.223GHz, respectively. The levels are found to be $99.94 \%$ $\mathbf{9 8. 4 \%}$, design numerically analyzed Finite Integration Technique. structure tested different oblique incident angles it provides reliable...
Research on optical amplifiers has highlighted how ionizing radiation negatively impacts the performance of erbium-doped fiber (EDFAs), through degradation their gain. The amplitudes and kinetics this are mainly explained by radiation-induced attenuation (RIA) phenomenon at pump signal wavelengths. In work, gain a tolerant EDFA (exploiting cerium-co-doped active fiber) induced up to 3 kGy (SiO2), two dose rates, 0.28 Gy/s 0.093 Gy/s, is studied an experimental/simulation approach. Using...