High Efficiency Quantum Dots Laser using Subband Carrier Dynamics

本工作的目的是开发一种高效的量子点（QDs）激光器，利用多桩量子点结构之间的隧道效应形成子带。在这项工作中，我们计算了量子点中不同势垒宽度的波函数耦合，并在10nm势垒宽度下进行了波函数耦合。通过计算和实验表明，当势垒宽度为3.5nm时，多层叠加量子点的光学放大系数最高。

The purpose of this work is to develop a high efficiency quantum dots(QDs) laser, utilizing a subband formation with tunnel effect between the multi staked QDs structures. In this work, we have calculated the coupling of wave-function various barrier widths in QDs and the wave function have been coupled under 10nm barrier width. Through the calculation and experiments, it was shown that the Optical amplification factor was highest level in the multi stacked QD with as 3.5nm barrier width.