Abstract

A plasmonic broadband light absorber, whose absorption is insensitive to incident angles and polarizations, in the UV to near-infrared regions is demonstrated. In experimental observations, the maximum average absorption of 83% over a wavelength range from 300 to 1000 nm was confirmed. Our proposed plasmonic absorber is based on a three-layer stack of metal-insulator-metal, and the top metal layer is nanostructured by colloidal lithography. This structure is composed of Al, which is an excellent and cost-effective plasmonic material. This fabrication simplicity and economical material allows us to produce a large-scale device of solar absorbers.

© 2018 Optical Society of America

Thermal stability and optical properties of an Al semishell nanostructure

Kishin Matsumori and Ryushi Fujimura
Opt. Mater. Express 8(5) 1265-1273 (2018)

Ultra-broadband absorber from visible to near-infrared using plasmonic metamaterial

Lei Lei, Shun Li, Haixuan Huang, Keyu Tao, and Ping Xu
Opt. Express 26(5) 5686-5693 (2018)

Numerical study of an ultra-broadband near-perfect solar absorber in the visible and near-infrared region

Dong Wu, Chang Liu, Yumin Liu, Li Yu, Zhongyuan Yu, Lei Chen, Rui Ma, and Han Ye
Opt. Lett. 42(3) 450-453 (2017)

Broadband infrared binary-pattern metasurface absorbers with micro-genetic algorithm optimization

Zhigang Li, Liliana Stan, David A. Czaplewski, Xiaodong Yang, and Jie Gao
Opt. Lett. 44(1) 114-117 (2019)

Tunable light absorbance by exciting the plasmonic gap mode for refractive index sensing

Linling Qin, Shaolong Wu, Jian-hua Deng, Liujing Li, and Xiaofeng Li
Opt. Lett. 43(7) 1427-1430 (2018)