Comparison of Fabrication Methods Based on Nanoimprinting Lithography for Plasmonic Color Filter Fabrication
- 51 Downloads
The angle-variable tunable optical filter was strictly fabricated by two strategies of nanoimprint-coupled metal nanopatterning with improved cost-effectiveness and accessibility. The tunable optical properties and the performances of two strategies were experimentally examined and turned out to be well matched to numerical results. Tunable properties are obtained by three factors: size of fabricated Ag nanodisks, incident illumination angle, and fabrication strategies. The resonant extinction peak shifts were identified to show a large increase along with the increase in fabricated Ag disk size and increase in the incidence angle of illumination. When comparing a fabrication strategy, it was confirmed that the sample fabricated by the strip-off method has better stability on color changes with a consistent dependency on the incident angle. The presented strategies of fabrication are technically viable for obtaining well-defined plasmonic nanostructures so that it has the feasibility to apply for fascinating optical applications including display or tunable optical filters.
KeywordsPlasmonic resonance Nanoimprint Multilayer transfer Optical filter Transmittance Nanodisks
This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2018R1A4A1025623, 2017M3D1A1039287). In addition, this research was funded by the Korea Institute for Advancement of Technology (KIAT) (N0002310) under the Ministry of Trade, Industry, and Energy (MOTIE).
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no competing interests.
- 16.Lochbihler H (2015) Polarizing and angle-sensitive color filter in transmittance for security feature applications. Adv Optical Technol 4:12155Google Scholar
- 20.Sauvage-Vincent J, Tonchev S, Veillas C et al (2013) Optical security device for document protection using plasmon resonant transmission through a thin corrugated metallic film embedded in a plastic foil. Journal of the European Optical Society - Rapid publications 8Google Scholar
- 25.Jun TAO, Yong-Hua LU, Rong-Sheng Z et al (2008) Effect of aspect ratio distribution on localized surface plasmon resonance extinction spectrum of gold nanorods. No 12:4459Google Scholar