Color filters A color filter is any object that reflects or transmits light in a way that some color is observed. The color filters, as the name suggests, filters some parts of the electromagnetic spectrum of the sun (or Blackbody radiation spectrum). This wavelength spectrum is then sent to the

Metamaterial/ Metasurface absorbers In the previous post about classical perfect light absorbers, we discussed the thin film based absorbers in the shape of Salisbury screen absorbers and Jaumann absorbers. Now, these thin film based absorbers, especially the Salisbury screen, can be titled as an early demonstration of metasurface absorbers as