In this conception of the photon, the Poynting Vector would be proportional to the cross product of ExB, and thereby would be expanding and contracting in the E-field planes perpendicular to the direction of motion. In accordance with the Maxwell Equations, the curl of E is proportional to the time rate of change of the B-field, and since a photon has no charges (photons emitt no electic fields) it experiences an oscillatory spin and thereby the angular momentum is not conserved for the photon and that leads to symmetry breaking on the quantum realm of things. This is only true for objects that don't have a charge, but for objects that do have charges (and thereby a current density) the angular momentum is conserved.Note: Polarizations and equations from Feynman Lectures On Physics, wave interactions from image on the internet. The Following Picture of the common conception of the photon is taken from Roger Penrose's "The Road to Reality":
This is Penrose's Photon that goes with his Twistor Theory:
