Using a Semiconductor-to-Metal Transition to Control Optical Transmission through Subwavelength Hole Arrays

Figure 3

(Color online) experimental zero-order transmission spectra for single plain (i.e., no holes) and perforated layers in: (a) semiconducting $\text{V}{\text{O}}_2$, (b) metallic $\text{V}{\text{O}}_2$. Wavelength dispersion of the (c) real and $(\text{i}\text{n}\text{s}\text{e}\text{t})$ imaginary parts of the $\text{V}{\text{O}}_2$ dielectric function, in each phase (data extracted from [24]), (d) Regular hysteresis at $\lambda =800\text{n}\text{m}$ for the plain-$\text{V}{\text{O}}_2$ case (normalized to the highest transmission in the semiconducting phase of the $\text{V}{\text{O}}_2$ layer; downward/upward arrow denotes the heating/cooling part of the thermal cycle; cf, reverse hysteresis in (Figure 2(a) inset).

(a)

(b)

(c)

(d)