I am trying to build an optical logic circuit using the horizontal or vertical orientations of light as the two binary states and laser as the source. Before I ask you my question I wanted to first share how I designed the NOT Gate.
NOT Gate To explain the working let's assume I send in a horizontally oriented beam of light. This beam splits into two beams. Because it is horizontally oriented, the first split beam won't enter the V Polarizer and gets blocked. The second split beam enters the H Polarizer and consequently gets vertically oriented at the end and the lower ldr detects the light, notifying us that it is now in V state.
My Problem Now, I am not able to figure out another combination of polarizers for AND and OR Gate. Can anyone help me in giving me a lead?