The curved spacetime Maxwell equations are applied to the anisotropically expanding Kasner metrics. Using application of vector identities we derive second-order differential wave for electromagnetic field components; through this explicit derivation, find that not uncoupled various components (as previously assumed), but gravitationally induced coupling between electric and magnetic is generat...

We consider propagation of coupled waves (polaritons) formed by a scalar electromagnetic wave and excitations of a finite one dimensional chain of dipoles. It is shown that a microscopic defect (an impurity dipole) embedded in the chain causes resonance tunneling of the electromagnetic wave with the frequency within the forbidden band between two polariton branches. We demonstrate that resonanc...