(a)
(b)
(c)
Figure 5: (a) FL spectra of IR783 on the SC metasurface of 250 (red) and on the flat Au on the SOI substrate (black). The latter was 10 times enlarged for clarity. The reflectance () spectrum (gray dashed line) is plotted for the right axis. The second and third resonances are indicated by (2) and (3), respectively. (b) FL spectra on the SC metasurface of 265 and on the flat Au on the SOI substrate are shown similar to (a). (c) FL-intensity ratio, which was evaluated by dividing the FL intensity on SC metasurface by the FL intensity on the flat Au on the SOI substrate. Red bars correspond to 250 and green bars to 265.