Abstract

Highly tunable optical transmission through one-dimensional gold gratings patterned on top of a film of the phase transition material, vanadium dioxide (${\mathrm{VO}}_2$), is demonstrated. Dense electrical integration is enabled by grating features that also function as electrical contacts to the ${\mathrm{VO}}_2$. Extraordinary optical transmission is observed in the ${\mathrm{VO}}_2$ insulator phase, and the optical transmission is extinguished by up to about 6 dB in a 170 nm thick ${\mathrm{VO}}_2$ film. Measurements of gratings with varying duty cycles demonstrate the dependence of the optical transmission and tuning on the device geometry.

© 2015 Optical Society of America

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