Color display and encryption with a plasmonic polarizing metamirror

Nanophotonics

article

Maowen Song¹  Xiong Li¹  Mingbo Pu¹  Yinghui Guo¹  Kaipeng Liu¹  Honglin Yu³  Xiaoliang Ma¹  Xiangang Luo¹ 

[1] State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences;International Cooperative Research Center on Subwavelength Sciences, Institute of Optics and Electronics, Chinese Academy of Sciences;Key Lab of Optoelectronic Technology and Systems of Education Ministry of China, Chongqing University

关键词: color display;    encryption;    metamirror;    metasurface;    polarization;    structural color;   

DOI  :  10.1515/nanoph-2017-0062

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Structural colors emerge when a particular wavelength range is filtered out from a broadband light source. It is regarded as a valuable platform for color display and digital imaging due to the benefits of environmental friendliness, higher visibility, and durability. However, current devices capable of generating colors are all based on direct transmission or reflection. Material loss, thick configuration, and the lack of tunability hinder their transition to practical applications. In this paper, a novel mechanism that generates high-purity colors by photon spin restoration on ultrashallow plasmonic grating is proposed. We fabricated the sample by interference lithography and experimentally observed full color display, tunable color logo imaging, and chromatic sensing. The unique combination of high efficiency, high-purity colors, tunable chromatic display, ultrathin structure, and friendliness for fabrication makes this design an easy way to bridge the gap between theoretical investigations and daily-life applications.

【 授权许可】

CC BY