吸波超材料研究进展

Research progress in metamaterial absorber

吸波超材料由于其独特的电磁特性,在过去十几年内成为吸波功能材料领域的研究热点。本文通过对近些年吸波超材料报道的归纳总结,对吸波超材料的研究进展进行介绍。经过多年来的发展,吸波超材料从最初的单一功能窄频段吸波特性逐渐向宽频带、宽角度入射、可智能调节等多功能方向发展,而在吸波频段的研究也由微波频段扩展至太赫兹、近红外、可见光等频段。对不同类型的吸波超材料分别进行介绍,对于不同特点吸波超材料的制备、设计方法和工作原理进行总结,最后对吸波超材料的发展方向进行了展望。

Due to the exotic electromagnetic properties,metamaterial absorber has spawned extensive research into wave absorption materials over the past decade.This paper provides an introduction on metamaterial absorber by summarizing the reports in recent years.The metamaterial absorber has progressed significantly with special function from narrow bandwidth to broad bandwidth,wide angle tolerance,polarization independence and smart/tunable absorbance.Meanwhile the working frequency across the electromagnetic spectrum is broadened from microwave to terahertz,near-infrared and optical.This paper introduces different types of metamaterial absorber and summarizes the fabrication,design method and working principle of metamaterial absorber.Finally,the promising research field of metamaterial absorber is predicted.