Ultrahigh resolution and color gamut with scattering-reducing transmissive pixels

June Sang Lee, Ji Yeon Park, Yong Hwan Kim, Seokwoo Jeon, Olivier Ouellette, Edward H. Sargent (), Dong Ha Kim () and Jerome K. Hyun ()
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June Sang Lee: Ewha Womans University
Ji Yeon Park: Ewha Womans University
Yong Hwan Kim: KOS, Inc.
Seokwoo Jeon: Korea Advanced Institute of Science and Technology (KAIST)
Olivier Ouellette: University of Toronto
Edward H. Sargent: University of Toronto
Dong Ha Kim: Ewha Womans University
Jerome K. Hyun: Ewha Womans University

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract While plasmonic designs have dominated recent trends in structural color, schemes using localized surface plasmon resonances and surface plasmon polaritons that simultaneously achieve high color vibrancy at ultrahigh resolution have been elusive because of tradeoffs between size and performance. Herein we demonstrate vibrant and size-invariant transmissive type multicolor pixels composed of hybrid TiOx-Ag core-shell nanowires based on reduced scattering at their electric dipolar Mie resonances. This principle permits the hybrid nanoresonator to achieve the widest color gamut (~74% sRGB area coverage), linear color mixing, and the highest reported single color dots-per-inch (58,000~141,000) in transmission mode. Exploiting such features, we further show that an assembly of distinct nanoresonators can constitute a multicolor pixel for use in multispectral imaging, with a size that is ~10-folds below the Nyquist limit using a typical high NA objective lens.

Date: 2019
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DOI: 10.1038/s41467-019-12689-2

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