Red and Blue color production by flexible all-dielectric structure

Roostaei, N.; Shnan, Nizar Salim; Hamidi, Seyedeh Mehri

doi:10.1016/j.ijleo.2021.166345

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…While abundant in nature (14), engineered passive structural colors have also been demonstrated to great effect in the past decade (9-11, 13, 15-17). Both metallic (18)(19)(20)(21)(22) and dielectric structures (12,(23)(24)(25) have been shown, and generic "structural color papers" that can be "painted" using a high-power laser has also been demonstrated (23,(26)(27)(28)(29)(30). Apart from passive structural colors, tunable or "dynamic" structural colors for display applications are also seeing increasing interest (11).…”

Section: Introductionmentioning

confidence: 99%

MEMS cantilever–controlled plasmonic colors for sustainable optical displays

et al. 2022

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Conventional optical displays using indium tin oxide and liquid crystal materials present challenges for long-term sustainability. We show here a cost-effective and complementary metal-oxide semiconductor (CMOS)–compatible fast and full-range electrically controlled RGB color display. This is achieved by combining transmission-based plasmonic metasurfaces with MEMS (microelectromechanical systems) technology, using only two common materials: aluminum and silicon oxide. White light is filtered into RGB components by plasmonic metasurfaces made of aluminum nanohole arrays. The transmission through each color filter is modulated by MEMS miniaturized cantilevers fabricated with aluminum and silicon oxide on top of the color filters. We show that the relative transmission of a color subpixel can be freely modulated from 35 to 100%. The pixels can also operate well above 800 Hz for future ultrafast displays. Our work provides a road to future circular economic goals by exploiting advances in structural colors and MEMS technologies to innovate optical displays.

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Section: Introductionmentioning

confidence: 99%

MEMS cantilever–controlled plasmonic colors for sustainable optical displays

et al. 2022

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“…While abundant in nature 13 , engineered passive structural colors have also been demonstrated to great effect in the last decade 9,10,12 . Both metallic [14][15][16][17][18] and dielectric structures 11,[19][20][21] have been shown, and generic 'structural color paper' that can be 'painted' using a high-power laser has also been demonstrated 19,[22][23][24][25][26] . Apart from passive structural colors, tunable or 'dynamic' structural colors for display applications are also seeing increasing interest 10 .…”

Section: Introductionmentioning

confidence: 99%

Dynamic Control of Plasmonic Colors by Voltage Actuation MEMS Cantilevers for Optical Display Applications

Han,

Frydendahl,

Mazurski

et al. 2021

Preprint

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Conventional optical displays using ITO (indium tin oxide) and LC (liquid crystal) materials present a lot of challenges in terms of long-term sustainability. We show here how it is possible to generate a cost-effective and CMOS compatible fast and full range electrically controlled RGB color display by combining transmission based plasmonic metasurfaces with MEMS (Microelectromechanical systems) technology, using only two common materials: Aluminum and silicon oxide. White light is filtered into red, green, and blue components by plasmonic metasurfaces made of aluminum nanohole arrays, and the transmission through each color filter is modulated by MEMS miniaturized cantilevers fabricated with aluminum and silicon oxide on top of the color filters. We show that the relative transmission of a color subpixel can be freely modulated from 35% to 100%. Our pixels can also operate well above 800 Hz, enabling future ultrafast displays. Our work provides a road to future circular economic goals by exploiting advances in structural colors and MEMS technologies to innovate optical displays.

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Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

Shnan¹,

Roostaei²,

Hamidi³

2023

J. Opt. Soc. Am. B

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We have investigated theoretically and experimentally the effect of plasmonic and all-dielectric metasurfaces on the magneto-optical response of the 2D periodic structure. For this purpose, we fabricate polydimethylsiloxane-based 2D microstructures. So, we coated them with a gold layer and a TiO2 dielectric layer as plasmonic and dielectric metasurfaces, respectively, CoFeB as the prominent magneto-optical thin films. We record the spectral magneto-optical longitudinal Kerr effect under 40 mT, and the spectrometer’s response in all visible regions. Our results show that the electric and magnetic dipole moments enhance the magneto-optical response by factors of one and two in two closer channels in 650 and 660 nm in an all-dielectric structure, respectively. The plasmonic hot spot-based magneto-optical enhancement is also confirmed in two other media with an enhancement factor of two.

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Red and Blue color production by flexible all-dielectric structure

Cited by 4 publications

References 33 publications

MEMS cantilever–controlled plasmonic colors for sustainable optical displays

MEMS cantilever–controlled plasmonic colors for sustainable optical displays

Dynamic Control of Plasmonic Colors by Voltage Actuation MEMS Cantilevers for Optical Display Applications

Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

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