Radiation Modes of an Accelerated Cavity

Abstract

The paper presents a theory of radiation by an accelerated linear laser cavity at imaginary eigenfrequencies. Expressions for the phase, frequency, and allowed directions of radiation are given. It is found that, in a rigid cavity moving with a constant acceleration together with a photodetector, two groups of frequencies with four different complex arguments are radiated. A relation between the earlier introduced radiation vector and the wave vector is established. It is shown that the radiation vector, which determines the eigenvalues of the spatial problem, is a multiple of the wave vector if boundary conditions are imposed along only one coordinate, when the side walls of the cavity with a plane front are located at infinity.