Highly tunable polarized chromatic plasmonic films based on sub-wavelength grating templates

Zheng, Jun and Ye, Zhi-Cheng and Wang, Cheng-Liang and Fu, Yi-Fei and Huang, Xin-Ran and Sheng, Zheng-Ming (2019) Highly tunable polarized chromatic plasmonic films based on sub-wavelength grating templates. Advanced Materials Technologies, 4 (5). 1800661. ISSN 2365-709X (https://doi.org/10.1002/admt.201800661)

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Abstract

A kind of polarized chromatic plasmonic film is proposed based on subwavelength grating structure, which enables “blue transmission” for the transverse electric light and “red transmission” for the transverse magnetic light. Metal–insulator–metal plasmonic waveguiding and metallic nanowire scattering are revealed to be responsible for the chromatic shift. Based upon the unique transmission spectrum characteristics of such films, polarized chromatic plasmonic tags (PCPTs) can be flexibly fabricated by patterning dielectric grating templates with designed figures and depositing appropriate thickness of metal. These PCPTs, simultaneously possessing directly visible unpolarized transmission colors and concealed distinct polarization‐dependent color shift, can be widely used as anti‐counterfeiting tags with higher security than the diffractive types of holograms.

  • Item type:Article
    ID code:67466
    Dates:
    Date
    Event
    1 May 2019
    Published
    18 February 2019
    Published Online
    8 February 2019
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:01 Apr 2019 13:34
    Last modified:20 Apr 2024 00:37
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/67466
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