Fig. 2
From: Hyperbolic metamaterials: fusing artificial structures to natural 2D materials
b Reproduced with permission from ref. [24], copyright 2008, AAAS. c Adapted with permission from ref. [25], copyright 2010, NPG. d Adapted with permission from ref. [72], copyright 2008, ACS. e Adapted with permission from ref. [73], copyright 2017, ACS
Sub-wavelength imaging using HMMs. a Schematics of light propagation in (i) air, (ii) HMMs, and (iii) hyperlens. b Cylindrical hyperlens composed of alternating layers of silver (Ag) and silicon dioxide (\(\text {SiO}_2\)). c A schematic and scanning electron microscope (SEM) image of spherical hyperlens made of Ag and titanium dioxide (\(\text {TiO}_2\)). d A planar hyperlens designed by transformation optics and its simulation result. e Sub-wavelength imaging system combined with array type hyperlens and SEM images of the fabricated wafer-scale hyperlens.