STUDYOFRESONANTRAMANSCATTERING FROM(CdSe) m/(ZnSe) n ZnSe QUANTUM WELLS UNDER HYDROSTATIC PRESSURE
静压下（CdSe）_m／（ZnSe）_n－ZnSe超短周期超晶格量子阱的共振喇曼散射研究

Photoluminescence and Raman scattering of a new (CdSe) m/(ZnSe) n ZnSe multiple quantum wells structure consisting of (CdSe) m/(ZnSe) n short period superlattices as well layer and thick ZnSe as barrier layer are reported.The thickness of active range in CdSe/ZnSe hetero epitaxy can be increased in this structure.The recombination luminescence of heavy hole exciton and up to fourth order ZnSe like LO multiple phonon Raman scattering from short period superlattices,as well as the band edge luminescence and ZnSe like LO phonon scattering confined in the thick barrier layer were observed.The study shows that the frequencies of ZnSe like 1LO and 2LO phonons in the short period superlattices have a blue shift under hydrostatic pressure with the rate of 3.76 and 7.11 cm -1 /GPa,respectively,and the PL peak energy in the superlattice wells has a pressure coefficient of 59.8meV/GPa.The Raman shift of the ZnSe like 1LO phonon modes in resonance with (CdSe) m/(ZnSe) n superlattices is approximately 2.0cm -1 lower than that in resonance with ZnSe barrier,which is attributed to the confinement effect of LO phonons in the short period superlattices.