Correlation of the left- and the right-handed circularly polarized waves in an anisotropic crystal

An optical torque is induced by incidence of the linearly polarized light and propagating through an anisotropic crystal, which results in self-modulation of the ordinary and the extraordinary waves and causes an energy splitting of the resultant left-, and the right-handed elliptically polarized waves. The optical torque originates from the angular momentum of light, which causes the correlation of the left- and the right-handed circularly polarized waves in the crystal.