who needs ascii when I know how to use autocad?






The green object is a cross section of a tube of inside diameter 1 unit and length 5 units. The cyan arcs represent the propagating EM wave, the dashed grey arcs represent the part of that wave that has been blocked by the tube, and the red radials show the density of the probability. Unless I'm doing it wrong, it appears that the photon only has about a 4% chance of escaping the tube.