随角异色光子晶体薄膜的制备与FDTD模拟

doi:10.12066/j.issn.1007-2861.1834

上海大学学报(自然科学版) ›› 2018, Vol. 24 ›› Issue (3): 422-429.doi: 10.12066/j.issn.1007-2861.1834

随角异色光子晶体薄膜的制备与FDTD模拟

沈春夏, 张方方, 黄璐, 孟庆飞, 杨伟光, 史伟民()

上海大学材料科学与工程学院, 上海 200444

收稿日期:2016-06-13 出版日期:2018-06-15 发布日期:2018-06-27
通讯作者: 史伟民 E-mail:wmshi@mail.shu.edu.cn
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

SHEN Chunxia, ZHANG Fangfang, HUANG Lu, MENG Qingfei, YANG Weiguang, SHI Weimin()

School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China

Received:2016-06-13 Online:2018-06-15 Published:2018-06-27
Contact: SHI Weimin E-mail:wmshi@mail.shu.edu.cn

摘要/Abstract

摘要：

具有随角异色性能特征的光子晶体正逐渐成为较好的光学防伪薄膜材料.采用时域有限差分(finite difference time domain, FDTD)法研究光子晶体的光调制特性,以空气柱表2维光子晶体为研究对象,通过光学仿真分别模拟了不同孔洞直径、孔洞间隙表2维光子晶体的反射光谱.结果发现, 孔洞直径为800 nm、间隙为800 nm、深度为400 nm 表2维光子晶体具有较好的随角异色特征.采用磁控溅射法进行了在Si衬底表面制备Cr-SiO$_{x}$双层膜结构的实验,并利用光刻法制备了相应的光子晶体, 实验结果与模拟结果匹配.

关键词: 光子晶体, 角度异色, 时域有限差分

Abstract:

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.

Key words: photonic crystal, angle-dependent structural color, finite difference time domain

中图分类号:

O734

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.

SHEN Chunxia, ZHANG Fangfang, HUANG Lu, MENG Qingfei, YANG Weiguang, SHI Weimin. Preparation and FDTD simulation of photonic crystal thin films with angle-dependent structural color[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(3): 422-429.

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随角异色光子晶体薄膜的制备与FDTD模拟

Preparation and FDTD simulation of photonic crystal thin films with angle-dependent structural color

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