10 Feb 2010 | Xianliang Liu1, Tatiana Starr2, Anthony Starr2, and Willie J. Padilla1*
The authors present the first experimental demonstration of a spatially dependent metamaterial perfect absorber (MPA) operating in the infrared regime, achieving an absorption of 97% at a wavelength of 6.0 microns. They achieve this by using two different metamaterial sublattices: one with high absorption (Unit Cell A) and another with near-zero absorption (Unit Cell B). This design allows for spatial and frequency-selective absorption, which has potential applications in hyperspectral sub-sampling imaging. The study involves detailed design, fabrication, and characterization of the MPA, including numerical simulations and experimental measurements. The results show good agreement between simulations and experiments, and the authors discuss the potential for using such materials in single-pixel imaging and other advanced applications.The authors present the first experimental demonstration of a spatially dependent metamaterial perfect absorber (MPA) operating in the infrared regime, achieving an absorption of 97% at a wavelength of 6.0 microns. They achieve this by using two different metamaterial sublattices: one with high absorption (Unit Cell A) and another with near-zero absorption (Unit Cell B). This design allows for spatial and frequency-selective absorption, which has potential applications in hyperspectral sub-sampling imaging. The study involves detailed design, fabrication, and characterization of the MPA, including numerical simulations and experimental measurements. The results show good agreement between simulations and experiments, and the authors discuss the potential for using such materials in single-pixel imaging and other advanced applications.