Review of nanostructure color filters

Felix Gildas; Yaping Dan

doi:10.1117/1.JNP.13.020901

17 June 2019 Review of nanostructure color filters

Felix Gildas, Yaping Dan

Author Affiliations +

Journal of Nanophotonics, Vol. 13, Issue 2, 020901 (June 2019). https://doi.org/10.1117/1.JNP.13.020901

Abstract

Nanostructure color filters filter light spectrum via the structural engineering, unlike traditional dye filters that rely on the chemical compositions to absorb light. In light of the successful advance in micro/nanofabrication technology in the past decades, these structured color filters are particularly promising for future applications in ultrascaled color filtering and multispectral imaging. We will summarize the recent progress in nanostructure color filters based on plasmonics, nanowires, metamaterials, and quantum dots (QDs). Plasmonics filters rely on surface plasmon resonances to realize the spectrum selection. For nanowire color filters, the color filtering is achieved by light coupling into the leaky or waveguiding mode in nanowires. In metamaterial filters, the refractive index of artificial materials is manipulated to create a broad color palette. QDs color filters rely on bandgap engineering to create filtering effects by simply altering the size and composition of the QDs. Clearly, the above filtering technologies have their own pros and cons, which will be analyzed.

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Felix Gildas and Yaping Dan "Review of nanostructure color filters," Journal of Nanophotonics 13(2), 020901 (17 June 2019). https://doi.org/10.1117/1.JNP.13.020901

Received: 20 September 2018; Accepted: 22 May 2019; Published: 17 June 2019

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Cited by 21 scholarly publications and 2 patents.

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KEYWORDS

Optical filters

Nanowires

Nanostructures

Plasmonics

Polarization

Image filtering

Dielectric polarization

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