Does Casimir plates prevent photon existence only perpendicular to them? I mean, Casimir attraction arises from the fact that the plates prevent some wavelenghts of photons to exist in between them, so an imbalance arises and pushes the plates together, right? But what about photons in other than 90 degrees angle to the plates? say, at 45 degrees - the length of the photon in such a way could be longer then a perpendicular photon, but still limited, no? .. if so, even further - what about photons perpendicular to the plates? Photons that would otherwise go straight trough the gap between the plates? Some say that photons are supposed to width-less and height-less, but, then again - photon polarization works kinda with the principle that a photons have width (at least in 2D or maybe even in 1D perpendicular to its path line) for its electric and magnetic field.