標題: A fully functionalized metamaterial perfect absorber with simple design and implementation
作者: Fu, Sze Ming
Zhong, Yan Kai
Tu, Ming Hsiang
Chen, Bo Ruei
Lin, Albert
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 26-Oct-2016
摘要: Broadband perfect metamaterial absorbers have been drawing significant attention in recent years. A close-to-unity absorption over a broad spectral range is established and this facilitates many photonic applications. A more challenging goal is to construct a broadband absorber with a tailored spectral absorption. The spectral absorption control and spectral shaping are very critical in many applications, such as thermal-photovoltaic, thermal emitters, spectrum imaging system, biomedical and extraterrestrial sensing, and refractive index sensor. In this work, one-dimensional (1D) planar stacking structure is designed to achieve the ultimate goal of a functionalized absorber with a fully tailorable spectral absorption. The lithography and etching process are totally eliminated in this proposed structure, and the fabrication is fully compatible with the regular silicon IC processing. By using similar to 2 nm ultra-thin metallic layers with a 10-pair (10X) SiO2/Si3N4 integrated dielectric filter, we can achieve decent spectral response shaping. The planar configuration of the ultra-thin-metal metamaterial perfect absorber (MPA) is the key to the easy design/integration of the dielectric filters on top of the MPA. Specifically, band-rejected, high-pass, low-pass and band-pass structure are constructed successfully. Finally, experimental evidence to support our simulation result is also provided, which proves the feasibility of our proposal.
URI: http://dx.doi.org/10.1038/srep36244
http://hdl.handle.net/11536/132625
ISSN: 2045-2322
DOI: 10.1038/srep36244
期刊: SCIENTIFIC REPORTS
Volume: 6
起始頁: 0
結束頁: 0
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