Polarization independent visible color filter comprising an aluminum film with surface-plasmon enhanced transmission through a subwavelength array of holes

Inoue, Daisuke; Miura, Atsushi; Nomura, Tsuyoshi; Fujikawa, Hisayoshi; Sato, K.; Ikeda, Naoki; Tsuya, Daiju; Sugimoto, Yoshimasa; Koide, Yasuo

doi:10.1063/1.3560467

Cited by 228 publications

(182 citation statements)

References 8 publications

Supporting

Mentioning

181

Contrasting

Order By: Relevance

“…Comprised of nano-scale apertures penetrating a metallic thin-film, plasmonic cavity-apertures are typically simpler to produce than their positive counterparts, and provide a less fabrication intensive route towards color selectivity. 1,14,15 Furthermore, these arrangements are perfectly suited to integration with existing CMOS image sensor technologies, such that full-color images can be obtained. 16,17 The implementation of these cavity-aperture filters is underpinned by the phenomena of extraordinary optical transmission (EOT) through periodic sub-wavelength apertures patterned in an otherwise optically opaque aluminum film.…”

mentioning

confidence: 99%

“…[19][20][21][22][23][24] By varying the size, shape, thickness and periodicity of the array, it is known that the permitted plasmon coupling frequency can be tuned, dictating the color of the transmitted light. 15,17,25,26 Typically, plasmonic cavity-aperture filters are comprised of circular nano-holes tuned to operate efficiently at a single wavelength. 27 However, in filtering applications such as polarimetry microscopy, security encryption and hyperspectral imaging, often dual or multi-color filtering is necessary, a requirement currently enabled by increasing the number of different filtering elements.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Dual Color Plasmonic Pixels Create a Polarization Controlled Nano Color Palette

2016

View full text Add to dashboard Cite

Color filters based upon nano-structured metals have garnered significant interest in recent years, having been positioned as alternatives to the organic dye-based filters which provide color selectivity in image sensors, as non-fading 'printing' technologies for producing images with nanometer pixel resolution, and as ultra-high-resolution, small foot-print optical storage and encoding solutions. Here, we demonstrate a plasmonic filter set with polarizationswitchable color properties, based upon arrays of asymmetric cross-shaped nano-apertures in an aluminum thin-film. Acting as individual color-emitting nano-pixels, the plasmonic cavityapertures have dual-color selectivity, transmitting one of two visible colors, controlled by the polarization of the white light incident on the rear of the pixel and tuned by varying the critical dimensions of the geometry and periodicity of the array. This structural approach to switchable optical filtering enables a single nano-aperture to encode two information states within the same physical nano-aperture; an attribute we use here to create micro image displays containing duality in their optical information states.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Dual Color Plasmonic Pixels Create a Polarization Controlled Nano Color Palette

2016

View full text Add to dashboard Cite

show abstract

“…Al is low in cost and compatible with mainstream manufacturing processes in the electronics industry (complementary metal-oxide semiconductor processing, known as CMOS) (12,13). Al has recently been identified as a highly promising chromatic material for color filters, for instance using structures such as hole arrays (14)(15)(16) or arrays of Al crosses (17).…”

mentioning

confidence: 99%

Vivid, full-color aluminum plasmonic pixels

Olson

Manjavacas

Liu

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

279

255

View full text Add to dashboard Cite

Aluminum is abundant, low in cost, compatible with complementary metal-oxide semiconductor manufacturing methods, and capable of supporting tunable plasmon resonance structures that span the entire visible spectrum. However, the use of Al for color displays has been limited by its intrinsically broad spectral features. Here we show that vivid, highly polarized, and broadly tunable color pixels can be produced from periodic patterns of oriented Al nanorods. Whereas the nanorod longitudinal plasmon resonance is largely responsible for pixel color, far-field diffractive coupling is used to narrow the plasmon linewidth, enabling monochromatic coloration and significantly enhancing the far-field scattering intensity of the individual nanorod elements. The bright coloration can be observed with p-polarized white light excitation, consistent with the use of this approach in display devices. The resulting color pixels are constructed with a simple design, are compatible with scalable fabrication methods, and provide contrast ratios exceeding 100:1.RGB | chromaticity | array | electron beam lithography D isplay technologies have been evolving toward vivid, fullcolor, flat-panel displays with high resolution and/or small pixel sizes, higher energy efficiency, and improved benefit/cost ratios. Some of the most popular current technologies are liquid crystal displays (LCD), laser phosphor displays, also known as electroluminescent displays, and light-emitting diode (LED)-based displays. A common characteristic of all color display technologies is the incorporation of various color-producing media, which can be inorganic, organic, or polymeric materials, into the device. These chromatic materials are chosen to produce the fundamental components of the color spectrum in additive color schemes such as the standard red-green-blue (sRGB) when illuminated by an internal light source or when an electrical voltage is applied.Inorganic chromatic materials have the potential to greatly extend the durability and lifetime of color displays. Inorganic nanoparticles have recently begun to be used in color displays in the form of quantum dot LEDs, which have excellent display lifetimes and industry-scalable, size-based, and material-based color tunability (1-3). However, obtaining blue colors from quantum dots has been challenging (4) owing to the requirement of synthesizing nanoparticles in the small size range required to achieve optical transitions in this wavelength range. Au nanoparticles can produce green and red colors based on their surface plasmon resonances (5), but shorter-wavelength hues are quenched because of interband transitions for wavelengths below 520 nm (6). Ag has also been investigated for display applications (7, 8), but although spectral features can be achieved across the visible region the material readily oxidizes (9, 10), requiring additional passivation layers.Al is potentially a highly attractive material for plasmon-based full-spectrum displays. Al is the third most abundant element in the earth's crust, beh...

show abstract

“…Authors have investigated the use of different metals (Au [2], Ag [3][4][5][6][7][8], Al [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]) and various aperture forms such as lines [4,5,10,24], circles [7, 9, 11, 14-16, 21, 25], triangles [12] and crosses [17,18,23]. Alternatively, a similar filtering behaviour can also be achieved by the formation of subwavelength metal islands [8,20].…”

Section: Introductionmentioning

confidence: 99%

Large area manufacturing of plasmonic colour filters using substrate conformal imprint lithography

et al. 2017

View full text Add to dashboard Cite

This work presents the large area fabrication of plasmonic colour filters consisting of subwavelength apertures in aluminium films of different thicknesses. Wafer-scale pattern transfer was realized by a soft lithography technique (substrate conformal imprint lithography). The fabricated colour filters have an active area of up to 145 cm2 which presents a considerable increase compared to previously published results. In addition to experimental investigations, simulations of the transmission behaviour were performed using a rigorous electromagnetic field solver based on an extended RCWA approach. Furthermore, the use of a spin-coated cover layer consisting of the UV-curable hybrid polymer OrmoComp® instead of often applied PECVD-SiO2 was investigated.

show abstract

Polarization independent visible color filter comprising an aluminum film with surface-plasmon enhanced transmission through a subwavelength array of holes

Cited by 228 publications

References 8 publications

Dual Color Plasmonic Pixels Create a Polarization Controlled Nano Color Palette

Dual Color Plasmonic Pixels Create a Polarization Controlled Nano Color Palette

Vivid, full-color aluminum plasmonic pixels

Large area manufacturing of plasmonic colour filters using substrate conformal imprint lithography

Contact Info

Product

Resources

About