Tantalum pentoxide: a new material platform for high-performance dielectric metasurface optics in the ultraviolet and visible region.

ABSTRACT: Dielectric metasurfaces, composed of planar arrays of subwavelength dielectric structures that collectively mimic the operation of conventional bulk optical elements, have revolutionized the field of optics by their potential in constructing high-efficiency and multi-functional optoelectronic systems on chip. The performance of a dielectric metasurface is largely determined by its constituent material, which is highly desired to have a high refractive index, low optical loss and wide bandgap, and at the same time, be fabrication friendly. Here, we present a new material platform based on tantalum pentoxide (Ta₂O₅) for implementing high-performance dielectric metasurface optics over the ultraviolet and visible spectral region. This wide-bandgap dielectric, exhibiting a

SUBMITTER: Zhang C 

PROVIDER: S-EPMC10800353 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature