Abstract

An optical antenna supporting Mie resonances enables light confinement near the free-space diffraction limit. The Mie scattering wavelengths of the antenna depend on the structural geometry, which allows the antennas to be used for colored imprint images. However, there is still room for improving the spatial resolution. Here, we show all-dielectric color printing with a subwavelength-scale resolution. The simple nanostructures fabricated with monocrystalline silicon exhibit various brilliant reflection color by tuning the physical dimensions of each antenna. This printing strategy could be used to further extend the degree of freedom in structural color design.

© 2017 Optical Society of Japan