Spontaneous radiation of a finite-size dipole emitter in hyperbolic media
Spontaneous radiation of a finite-size dipole emitter in hyperbolic media
We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic …