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Structured Metal Film as a Perfect Absorber

2013; Volume: 25; Issue: 29 Linguagem: Inglês

10.1002/adma.201300223

1521-4095

Xiang Xiong, Shang‐Chi Jiang, Yuhui Hu, Ru‐Wen Peng, Mu Wang,

Advanced Antenna and Metasurface Technologies

A new type of absorber, a four-tined fish-spear-like resonator (FFR), constructed by the two-photon polymerization process, is reported. An absorbance of more than 90% is experimentally realized and the resonance occurs in the space between the tines. Since a continuous layer of metallic thin film covers the structure, it is perfectly thermo- and electroconductive, which is the mostly desired feature for many applications.