收稿日期: 2016-06-13
网络出版日期: 2018-06-27
基金资助
上海市教委科研创新基金重点资助项目(13YZ001);上海市自然科学基金资助项目(18ZR1415600);上海市高校青年教师培养资助计划(ZZSD16011)
Preparation and FDTD simulation of photonic crystal thin films with angle-dependent structural color
Received date: 2016-06-13
Online published: 2018-06-27
沈春夏, 张方方, 黄璐, 孟庆飞, 杨伟光, 史伟民 . 随角异色光子晶体薄膜的制备与FDTD模拟[J]. 上海大学学报(自然科学版), 2018 , 24(3) : 422 -429 . DOI: 10.12066/j.issn.1007-2861.1834
Photonic crystals with angle-dependent structural color are developed as new optically variable ink for anti-counterfeiting. The finite difference time domain (FDTD) method is used to study light-modulated characteristics of two-dimensional photonic crystals composed of circular air cylinders. Reflection spectrums of two-dimensional photonic crystals with different hole diameters and distances between holes were simulated with optical software. Two-dimensional photonic crystals with a hole diameter 800 nm, distance between holes 800 nm, depth of holes 400 nm had good angle-dependent structural color. In the experiment, a Cr-SiO$_{x}$ two-layer structure was prepared on Si substrates by magnetron sputtering. Photonic crystals were fabricated using a photolithography method. The experiment results matched the simulation results.
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