Effect of the exciton-exciton interaction on resonance fluorescence of excitons in a quantum well - art. no. 023802

The effect of the exciton-exciton interaction on the resonance fluorescence of quantum-well excitons is studied. At relative low exciton density, the resonance fluorescence exists only when the exciton-exciton interaction is not negligible. The fluorescence spectrum changes from one peak to two peak s when the pump light intensity is increased beyond a critical value. The f luorescence light is antibunching when the mean exciton number in the quant um well is more than 0.5. The difference between exciton resonance fluoresc ence and two-level atom resonance fluorescence is presented.