Role Of Coulomb-Correlated Electron-Hole Pairs In Znse-Based Quantum-Well Diode-Lasers

Gain and absorption spectra in ZnSe-based blue-green diode lasers have been measured to show the role of pairwise Coulomb correlation between electrons and holes in Zn1-xCdxSe/Zn1-xSxSe quantum wells (QW's) under lasing conditions at room temperature. In addition, the rediative decay rates of electron-hole pairs have been obtained from time-resolved photoluminescence measurements over a wide temperature range. These experiments also point out the importance of the Coulomb interactions on the QW optical properties near its fundamental absorption edge under device operating conditions.