Polarization-independent plasmonic subtractive color filtering in ultrathin Ag nanodisks with high transmission

• DOI: 10.1364/ao.55.000148
• Publication Date: 2016-06-09T18:45:25Z
• Authors: X. L. Hu; L. B. Sun; Beibei Zeng; L. S. Wang; Z. G. Yu; S. A. Bai; S. M. Yang; L. X. Zhao; Q. Li; M. Qiu; R. Z. Tai; H. J. Fecht; J. Z. Jiang; D. X. Zhang
• Keywords: 02 engineering and technology; 0210 nano-technology

We demonstrate a TE/TM polarization-independent plasmonic subtractive color filtering scheme employing ultrathin two-dimensional Ag nanodisks. These TE/TM polarization-independent subtractive color filters exhibit small feature sizes (below 200 nm) and high transmission up to 70% in the visible spectral region, superior to previously reported plasmonic color filters. Simulated optical transmission spectra and colors are in good agreement with experimental results. The color-filtering behaviors strongly depend on thickness and period of nanodisks. Underlying mechanisms are also discussed in detail.