Color filter arrays based on dielectric metasurface elements

被引：4

作者：

Berzins, Jonas ^{[1
,2
]}

Silvestri, Fabrizio ^{[2
]}

Gerini, Giampiero ^{[2
,3
]}

Setzpfandt, Frank ^{[1
]}

Pertsch, Thomas ^{[1
]}

Baumer, Stefan M. B. ^{[2
]}

机构：

[1] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Inst Appl Phys, Albert Einstein Str 15, D-07745 Jena, Germany

[2] TNO, Opt Dept, Stieltjesweg 1, NL-2628 CK Delft, Netherlands

[3] Eindhoven Univ Technol, Electromagnet Grp, Dolech 2, NL-5600 MB Eindhoven, Netherlands

来源：

METAMATERIALS XI | 2018年 / 10671卷

基金：

欧盟地平线“2020”;

关键词：

color filter; RGB; CMY; color filter array; silicon; nanodisk; metasurfaces; SILICON NANOSTRUCTURES; ELECTRIC RESONANCES; RESONATORS;

D O I：

10.1117/12.2307155

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Digital imaging has been steadily improving over the past decades and we are moving towards a wide use of multi- and hyperspectral cameras. A key component of such imaging systems are color filter arrays, which define the spectrum of light detected by each camera pixel. Hence, it is essential to develop a variable, robust and scalable way for controlling the transmission of light. Nanostructured surfaces, also known as metasurfaces, offer a promising solution as their transmission spectra can be controlled by shaping the wavelength-dependent scattering properties of their constituting elements. Here we present, metasurfaces based on silicon nanodisks, which provide filter functions with amplitudes reaching 70-90% of transmission, and well suitable for RGB and CMY color filter arrays, the initial stage towards the further development of hyperspectral filters. We suggest and discuss possible ways to expand the color gamut and improve the color values of such optical filters.

引用

页数：11

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