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报道了常压金属有机化学汽相淀积(MOCVD)制备的Zn0.7Cd0.3Se/ZnSe单量子阱的光泵浦受激发射性质。在77K下观测到了n=2的重空穴激子发光峰和n=1的重空穴激子吸收峰。在77K脉冲激光泵浦下受激发射阈值功率密度为116kw/cm2。认为受激发射机理可能是激子局域态的空间填充。
Reported the optically pumped stimulated emission properties of Zn0.7Cd0.3Se / ZnSe single quantum well prepared by atmospheric pressure metal-organic chemical vapor deposition (MOCVD). The heavy hole exciton emission peak with n = 2 and the heavy hole exciton absorption peak with n = 1 were observed at 77K. The stimulated emission threshold power density was 116kw / cm2 at 77K pulsed laser pumping. It is considered that the stimulated emission mechanism may be the spatial filling of exciton local states.