Distinguishing quantum dot-like localized states from quantum well-like extended states across the exciton emission line in a quantum well

Sumi Bhuyan, Richarj Mondal, Bipul Pal +1

We have closely examined the emission spectrum at the heavy-hole exciton resonance in a high-quality GaAs multi-quantum well (MQW) sample using picosecond excitation-correlation ph…