Figure 1 (IMAGE) Compuscript Ltd Caption Schematic illustration of hyperbolic metamaterials and metasurfaces. (a) Type I hyperbolic metamaterials (εo > 0 and εe < 0) in metallic nanorod or nanowire configuration and their representative dispersion in the wavevector space (k-space). (b) Type II hyperbolic metamaterials (εo < 0 and εe > 0) in metal-dielectric multilayer configuration and their dispersion in the wavevector space. Credit OEA Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.