The paper says: > “The optical response of these artificially engineered nanostructures can be spectrally tuned across the entire visible spectrum to form a fu

The paper says: > “The optical response of these artificially engineered nanostructures can be spectrally tuned across the entire visible spectrum to form a full-color gamut by controlling the gap plasmon dispersion via the geometrical parameters. In the proposed architecture, the subwavelength optical cavity ensures a large degree of angle insensitivity, while the stochastic nature of the self-assembled layer results in polarization independence and near 100% absorption at selected spectral bands.” See https://news.ycombinator.com/item?id=35521006 https://news.ycombinator.com/item?id=35521006 for the link to the paper.