Figure 3: Plasmonic colour filters with a few slits.
From: Plasmonic nanoresonators for high-resolution colour filtering and spectral imaging
Simulated transmission for the green and red filters with 2, 4, 6 and infinite number of slits. The circle, triangle, diamond and star correspond to the structure with 2, 4, 6 and infinite slits respectively. Inset shows the optical microscopy images for the case of 2, 4 and 6 slits (slit number increases from bottom to top).
