Transmissive/Reflective Structural Color Filters: Theory and Applications
Figure 2
Tunable color filter. (a) Schematic of a nanohole array on SOI. (b) The nanohole array has an air gap from the glass plate, that is, “OFF” state. (c) The nanohole array contacts the glass plate, that is, “ON” state. (d) The reflective spectra [27].
