Stepwise-Nanocavity-Assisted Transmissive Color Filter Array Microprints

查看全文 作　　者：Yasi [1]Wang;Mengjie [2]Zheng;Qifeng [3,4,5]Ruan;Yanming [2]Zhou;Yiqin [1]Chen;Peng [2]Dai;Zhengmei [2]Yang;Zihao [2]Lin;Yuxiang [2]Long;Ying [3]Li;Na [6]Liu;Cheng-Wei [3,4]Qiu;Joel [5]K.W.Yang;Huigao [1]Duan

机构地区：[1]State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,China;[2]School of Physics and Electronics,Hunan University,Changsha 410082,China;[3]SZU-NUS Collaborative Innovation Center for Optoelectronic Science&Technology,International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education,College of Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China;[4]Department of Electrical and Computer Engineering,National University of Singapore,4 Engineering Drive 3,Singapore 117583,Singapore;[5]Engineering Product Development Pillar,Singapore University of Technology and Design,8 Somapah Road,Singapore 487372,Singapore;[6]Kirchhof Institute for Physics,University of Heidelberg,Im Neuenheimer Feld 227,69120 Heidelberg,Germany

出　　处：《Research》索引2018年第1期,共10页

基　　金：Te authors gratefully acknowledge the fnancial support from the National Natural Science Foundation of China(Grant nos.51722503 and 11574078). 摘　　要：Visible-light color flters using patterned nanostructures have attracted much interest due to their various advantages such as compactness,enhanced stability,and environmental friendliness compared with traditional pigment or dye-based optical flters.While most existing studies are based on planar nanostructures with lateral variation in size,shape,and arrangement,the vertical dimension of structures is a long-ignored degree of freedom for the structural colors.Herein,we demonstrate a synthetic platform for transmissive color flter array by coordinated manipulations between height-varying nanocavities and their lateral flling fractions.Te thickness variation of those nanocavities has been fully deployed as an alternative degree of freedom,yielding vivid colors with wide gamut and excellent saturation.Experimental results show that the color-rendering capability of the pixelated nanocavities can be still retained as pixels are miniaturized to 500 nm.Crosstalk between closely spaced pixels of a Bayer color flter arrangement was calculated,showing minimal crosstalk for 1μm2 square subpixels.Our work provides an approach to designing and fabricating ultracompact color flter arrays for various potential applications including stained-glass microprints,microspectrometers,and high-resolution image sensing systems. 关键词：arrangement RENDERING CAVITY

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Stepwise-Nanocavity-Assisted Transmissive Color Filter Array Microprints

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