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Wide-gamut plasmonic color filters using a complementary design method

机译：使用互补设计方法宽敞的曲线等离子体滤色器

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Plasmonic color filters (PCFs) can acquire primary colors from non-polarized incident light through a two-dimensional arrangement of subwavelength holes. However, owing to the geometry of the 2D array, unintended secondary transmitted peaks derived from the higher-order modes of the surface plasmon resonance (SPR) lead to color cross-talk with the primary peaks. Herein, we propose a complementary design method for generating high-purity red, green, and blue (R/G/B) by combining the G/B filters of hole-arrays with the R filters of dot-arrays. Metallic dot-array filters, wherein the wavelength band under 575?nm was effectively blocked by the induction of peak broadening, operated as optical high-pass filters exhibiting pure red, and consequently widen the color gamut of PCFs by 30% without loss of luminance and color tunability. This harmonious combination promises to yield competitiveness for a next-generation color filter by enhancing the color reproducibility of plasmonic nanostructures.
机译：等离子体滤色器（PCFS）可以通过亚波长孔的二维布置从非极化入射光获取原色。然而，由于2D阵列的几何形状，从表面等离子体谐振（SPR）的高阶模式导出的意外的次级传输峰导致与主峰值的串扰。这里，我们提出了一种通过将孔阵列的G / B滤波器与点阵列的R滤器组合来产生高纯度红色，绿色和蓝色（R / G / B）的互补设计方法。金属小阵列滤波器，其中通过峰值展会的诱导有效地阻断了575°以下的波长带，作为光学的光学高通滤波器操作，因此在没有亮度的情况下将PCF的色域扩大到30％，而不会损失亮度和颜色可调性。这种和谐组合通过提高等离子体纳米结构的色彩再现性来产生下一代滤色器的竞争力。

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