Abstract:
A new form of the quasioptical equation is proposed to describe the propagation of an electromagnetic wave beam in a stationary smoothly inhomogeneous medium with spatial dispersion and dissipation. The proposed approach guarantees the positive definiteness of the absorbed power in the locally dissipative medium, which is a nontrivial property for inhomogeneous media with spatial dispersion. An efficient numerical scheme is constructed to solve the derived quasioptical equation.
Citation:
A. A. Balakin, E. D. Gospodchikov, A. G. Shalashov, “On the quasioptical approximation in dissipative media with spatial dispersion”, Pis'ma v Zh. Èksper. Teoret. Fiz., 104:10 (2016), 701–707; JETP Letters, 104:10 (2016), 690–695