We experimentally demonstrate an infrared broadband absorber based on an array of nanostrip antennas of several different sizes. The broadband property is due to the collective effect of magnetic responses excited by these nanoantennas at distinct wavelengths. By manipulating the differences of the nanostrip widths, the measured spectra clearly validate our design for the purpose of broadening the absorption band.
|Journal||Applied Physics Letters|
|Publication status||Published - 19 Dec 2011|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)