Purcell effect in PT-symmetric waveguides

Abstract

This chapter overviews the principles of the spontaneous emission rate increase, that is the Purcell effect, in relation to the photonic parity-time (PT) symmetry. Being focused on the system of coupled PT-symmetric optical waveguides, we consider behaviors of the Purcell factor in PT-symmetric and broken-PT-symmetric regimes. Surprisingly, exceptional points in a coupled waveguide do not influence on the Purcell factor.

Contributed chapter from the book "Chirality, Magnetism and Magnetoelectricity. Separate Phenomena and Joint Effects in Metamaterial Structures" by E. Kamenetskii. 30 pages, 10 figures