Electromagnetic Waves in a Medium with Screw Dislocations

It is shown that in a medium with screw dislocations oriented predominantly along one axis the rotational velocity of the plane of polarization of an electromagnetic wave is much greater when it propagates in the direction perpendicular to this axis than in the parallel direction. For a given dislocation density tensor, the conditions under which the rotational velocity of the plane of polarization of the electromagnetic wave reaches its maximum are found.