Effects of local fields on spontaneous emission in dielectric media
The local-field renormalization of the spontaneous emission rate in a dielectric is explicitly obtained from a fully microscopic quantum-electrodynamical, many-body derivation of Langevin-Bloch operator equations for two-level atoms embedded in an absorptive and dispersive, linear dielectric host. We find that the dielectric local-field enhancement of the spontaneous emission rate is smaller than indicated by previous studies.
Crenshaw
ME
Weapons Sciences Directorate, AMSAM-RD-WS-ST, Aviation and Missile Research, Development, and Engineering Center, U.S. Army Aviation and Missile Command, Redstone Arsenal, Alabama 35898, USA.
Bowden
CM