
Photonics, Journal Year: 2025, Volume and Issue: 12(5), P. 443 - 443
Published: May 3, 2025
With global energy demand surging and traditional resources diminishing, the solar absorber featuring optimized design shows substantial potential in areas like power generation. This study proposes a that is insensitive to wide-angle incidence polarization. It has cylindrical structure with square holes, which constructed from titanium nitride (TiN). The calculation results indicate that, for plane waves, average absorption of this across wavelength range 300–2500 nm reaches 92.4%. Moreover, its rate spectrum corresponding AM1.5 94.8%. analysis characteristics within electric magnetic field profiles indicates superior properties arise cooperative resonance effect. effect originates interaction among surface plasmon resonance, guided-mode cavity resonance. In study, geometric parameters absorber’s significantly influence performance. Therefore, we these obtain optimal values. Even at large incident angle, maintains high performance insensitivity polarization angle. findings expected are likely be considerable practical importance realm photothermal conversion.
Language: Английский