垂直堆叠量子点对中分子双激子的光致发光谱
Photoluminescence Spectroscopy of the Molecular Biexciton in Vertically Stacked Quantum Dot Pairs
摘要：
本文研究了垂直堆叠的InAs/GaAs量子点对的分子中性双激子-激子光谱。我们将两个点的空穴或电子能级调谐为隧穿共振。在一个少层次，少粒子的分子模型的光谱进行了描述。它们的性质可以通过电场和结构设计广泛地改变，这使得它们对于控制非线性光学性质非常有吸引力。
英文摘要：
We present photoluminescence studies of the molecular neutral biexciton-exciton spectra of individual vertically stacked InAs/GaAs quantum dot pairs. We tune either the hole or the electron levels of the two dots into tunneling resonances. The spectra are described well within a few-level, few-particle molecular model. Their properties can be modified broadly by an electric field and by structural design, which makes them highly attractive for controlling nonlinear optical properties.
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