Abstract:
A three-level cascade type system is subjected to a standing wave (SW) field
acting between the ground energy level and the intermediate energy level of the system
and the probe field scans the uppermost energy level from the intermediate energy level.
Optical Bloch equations (OBE) for this three-level system are derived from the Liouville
equation (Master equation) where the decay terms are added phenomenologically. These
OBEs are solved analytically under steady state condition by using weak probe
approximation. Under doppler free condition precession of localization was controlled by
tuning the SW rabi frequency and relative orientation of the applied fields.
