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Alternative plasmonic materials can withstand extreme temperatures, opening new frontiers in energy‐harvesting applications. A metamaterial based on titanium nitride, described by J. G. Guan, A. V. Kildishev, and co‐workers on page 7959, efficiently converts sunlight into heat, achieving temperatures greater than 1000 °C and it re‐radiates this energy in a narrow bandwidth for optimal absorption by...
A high‐temperature stable broadband plasmonic absorber is designed, fabricated, and optically characterized. A broadband absorber with an average high absorption of 95% and a total thickness of 240 nm is fabricated, using a refractory plasmonic material, titanium nitride. This absorber integrates both the plasmonic resonances and the dielectric‐like loss. It opens a path for the interesting applications...
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