Precise Tuning of Epsilon-Near-Zero Properties in Indium Tin Oxide Nanolayer by Supercritical Carbon Dioxide

We experimentally demonstrate the precise tuning of the epsilon-near-zero (ENZ) properties in indium tin oxide nanolayer by supercritical carbon dioxide treatment. Its ENZ wavelength is red-shifted 4.39 nm with a 3.13%-10.52% decrease in intrinsic loss. © 2020 The Author(s)