Skip to main content
Fig. 7 | eLight

Fig. 7

From: Hyperbolic metamaterials: fusing artificial structures to natural 2D materials

Fig. 7

a–e Adapted with permission from ref. [146], copyright 2014, NPG. f Adapted with permission from ref. [147], copyright 2020, WILEY. g Adapted with permission from ref. [148], copyright 2016, APS. h Adapted with permission from ref. [149], copyright 2012, AAAS. i Adapted with permission from ref. [150], copyright 2020, OSA

Spontaneous emission engineering using HMMs. Calculated Purcell factors above a the Ag layer and b a HMM composed of Ag and silicon (Si). c Tunable characteristics of the Purcell factor according to the filling ratio of HMMs. Color map of d Purcell factor and e radiative enhancement from a multilayer HMM (top) and nanopatterned HMM (bottom). Schematic of the outcoupling of a HMM f with a cylindrical antenna and g rolled-up structure. h The lifetime of emitters on different substrates; only emitters on metamaterials with a hyperbolic dispersion show a decrease of lifetime. i Effective permittivity of vanadium dioxide (\({\text {VO}_2}\)) in metal and semiconductor phases, and the Purcell factor and quantum efficiency in both phases.

Back to article page