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

Figure 1

(Color online) (a) FIB micrograph of a hole-array corner. Schematics of the studied hole arrays in: (b) $\text{A}\text{g}/\text{A}\text{U}\text{−}\text{V}{\text{O}}_2$ double layers, (c) single $\text{V}{\text{O}}_2$ layer. $\text{S}\text{N}\text{O}\text{M}$ transmission images ($\lambda =532\text{n}\text{m}$) of hole arrays in: (d) single $\text{V}{\text{O}}_2$ layer (semiconducting phase), (e) $\text{Au}\text{−}\text{V}{\text{O}}_2$ double layer. All perforated structures are on glass substrates.