Work

Nano-ridge plasmonic structural colors fabricated by roll-to-roll hot-embossing

Year: 2024

Type: article

Abstract: Structural colors are now applied in many areas, like traceable anti-counterfeiting and wearable technologies, due to their durability and wide color gamut. However, the large-scale deployment of structural colors has been limited by the complexity of device structures and, subsequently, the realization of cost-effective fabrication. In this work, we introduce a plasmonic structural color based on periodical nano-ridges, which can be nano-imprinted on an aluminum-polyurethane-polyethylene terephthalate film. These aluminum nano-ridges can excite metal and dielectric hybrid waveguide modes with surface plasmonic resonance for transverse magnetic (TM) lights, resulting in broad dips in the reflection spectrum. The design and key optical features of the proposed device structures are presented. The fabricated structures show desirable features, including angle-dependent and polarization-dependent chromatic reflections. This structure could be mass-produced using a conventional roll-to-roll hot-embossing nano-imprinting process on pre-prepared films, making it suitable for low-cost anti-counterfeiting applications.

Source: Optics Express

DOI: 10.1364/oe.540978

Authors: Peijin Wu, Shenghua Chen, Weiqiang Lin, Jun Zheng, Zhengming Sheng, Zhicheng Ye

Institutions: Shanghai Jiao Tong University, Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Natural Science Foundation of Fujian Province, Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China