Abstract
In this Letter, we demonstrate experimentally that a patchwork of four metal–insulator–metal patches leads to an unpolarized wideband omnidirectional infrared absorption. Our structure absorbs 70% of the incident light on a 2.5 μm bandwidth at 8.5 μm. It paves the way to the design of wideband efficient plasmonic absorbers in the infrared spectrum.
©2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Joshua Hendrickson, Junpeng Guo, Boyang Zhang, Walter Buchwald, and Richard Soref
Opt. Lett. 37(3) 371-373 (2012)
Chih-Ming Wang and De-Yu Feng
Opt. Express 22(2) 1313-1318 (2014)
Ayan Chakrabarty, Feng Wang, Fred Minkowski, Kai Sun, and Qi-Huo Wei
Opt. Express 20(11) 11615-11624 (2012)