162 Laser-based measurements for time and frequency domain applications
3. Cavity QED - There is great activity in both theoretical and ex perimental
investigations of cavity quantum electrodynamics effects in WGRs. For instance,
sp ontaneous emission processes may be either enhanced or inhibited in a cavity
due to a modification of the dens ity of electromagnetic states compared with
the density in a free space. This effect was studied theoretically as well as
exp e rimentally in WGRs. In this frame, several methods have been proposed
for control of atomic quantum state in atoms coupled to microspheres. These
include excitation, decay control, location-dependent control of interference of
decay channels, and deco herence control by conditionally interfering ...