All-dielectric metameric filters for optically variable devices

作     者：卜轶坤 郭榕 李延凯 孟增铀 陈楠 

作者机构：Department of Electronic Engineering Xiamen University Xiamen 361005 China Energetic Opto (Fujian) Technology Co. Ltd Putian 351115 China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2014年第12卷第11期

页      面：31-34页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080902[工学-电路与系统] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：This work was supported by the National Naltural Science Foundation of China under Grant (No. 61107038) and tile Strategic Emerging Industries Foundation of Fujian Province(No. 20130202) 

主　　题：Bit error rate Blue light emitting diodes Integrated optoelectronics Orthogonal frequency division multiplexing Visible light communications White light emitting diodes 

摘      要：In order to increase the anti-counterfeiting performance of optically variable devices, the innovative interference security image structures based on metamerism have been developed. In this letter, we show a pair of all-dielectric metameric filters offering a hidden image effect with the color shift at a specific angle of observation. These filters are designed by two materials TiO/SiO2 based on the different angle color target optimization. The 6-layer- and 9-layer stacks are achieved and the performance of prototype filters prepared by remote plasma sputtering is shown. The color difference index of the experiment is up to 1.19, which shows good metameric matching effect.