QED cavities and quasimodes

We describe the absorption by the walls of a quantum electrodynamical cavity as a process during which the elementary excitations (photons) of an internal mode of the cavity exit by tunneling through the cavity walls. We estimate by classical methods the survival time of a photon inside the cavity and the quality factor of its mirrors.

Related paper

V. Debierre, G. Demésy, T. Durt, A. Nicolet, B. Vial, and F. Zolla. Absorption in quantum electrodynamics cavities in terms of a quantum jump operator. Phys. Rev. A 90, p. 033806, Sept. 2014. DOI | arXiv

 

modes_haroche
Modes of the QED cavity