Highly Efficient Broadband Light Absorber Based on Nonuniform Hyperbolic Metamaterial Film

Figure 1

(Color online) (a) the wavelength dependence of real (curve 1) and imaginary (curve 2) parts of the permittivity of silver, (notice different scales for and ); (b) the dispersion of dielectric tensor components (real part) (curve 1) and (curve 2) of effective wire medium (silver wires with volume fraction in silica host); (c) the normalized critical angle, as a function of the wavelength. Dashed line marks the transition from common elliptical medium to the hyperbolic one with .

(a)

(b)

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