J. Valenta et al., EXCITON AND BIEXCITON PHENOMENA IN ZINC-SULFIDE EPILAYERS, Journal of nonlinear optical physics and materials, 5(4), 1996, pp. 621-629
The detailed characterization of metal organic vapour phase epitaxy gr
own ZnS layers on GaAs is the first step towards the study of their di
fferent non-linear optical properties performed with nanosecond lasers
. Biexciton phenomena (with a binding energy of about 10 meV) are obse
rved in photoluminescence-excitation and optical-gain spectra.