Optical bistability and multistability via multi-Raman-channel interference

【摘要】 We investigate the optical bistability and multistability behaviors in a closed three-level Λ-type atomic system.By adding a sideband on either hand of the transitions which are originally coupled by a coherent control field and a coherent probe field to disturb the two-photon resonance,bistability occurs due to two-channel interference.Increasing the sideband Rabi frequency leads to the switching from bistability to tristability.When the sideband simultaneously couples with both hands,we can easily obtain quadrastability.更多还原

【Abstract】 We investigate the optical bistability and multistability behaviors in a closed three-level Λ-type atomic system.By adding a sideband on either hand of the transitions which are originally coupled by a coherent control field and a coherent probe field to disturb the two-photon resonance,bistability occurs due to two-channel interference.Increasing the sideband Rabi frequency leads to the switching from bistability to tristability.When the sideband simultaneously couples with both hands,we can easily obtain quadrastability.更多还原