Methods - Metal Mirrors

This method represents a near-ideal case where mirrors reflect all incident light, regardless of incident angle, confining it to the pixel center. The mirrors would be made of aluminum, the same material used for the metal wires. There have not been any publications of this technique to date, which is not surprising given the potential difficulties in fabricating it, as well as adverse electrical and mechanical effects associated with a great amount of additional metal.

Simulations of the metal mirror technique used 0.1 µm thick walls of metal placed similar to the air gap layout.