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 betwee n electrons and holes in Zn1-xCdxSe/Zn1-xSxSe quantum wells (QW's) und er lasing conditions at room temperature. In addition, the rediative d ecay rates of electron-hole pairs have been obtained from time-resolve d 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 unde r device operating conditions.