After optimizing the QD growth parameters and studying the mechanisms of elongated QD emission wavelength, multi-stack QDs are grown for increasing the modal gain of QD lasers.

• 在成功最佳化量子点成长参数，及探究量子点发光波长红移的物理机制后，我们尝试成长多层量子点堆叠以提升雷射元件之增益值。