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Highly transmissive subtractive color filters based on an all-dielectric metasurface incorporating TiO2 nanopillars

Koirala, Ishwor; Lee, Sang-Shin; Choi, Duk-Yong


Transmissive subtractive color filters are proposed and demonstrated that take advantage of an all-dielectric metasurface based on a lattice of TiO2 nanopillars (NPs), rendering a high transmission efficiency that exceeds 90%. TiO2 NP elements have been created that exhibit a high aspect ratio. Specifically, a series of lithographic processes are conducted to form a narrow and deep hole in the photoresist, which is accompanied by atomic layer deposition of TiO2. A broad palette of vivid colors...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.26.018320
Access Rights: Open Access


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