论文标题
MoiréInterlayer激子之间的级联反过渡的光学签名
Optical signature of cascade transitions between moiré interlayer excitons
论文作者
论文摘要
能量水平之间的级联转变具有重要的应用，例如在量子信息方案和量子级联激光器中。在二维异质结构中，Moiré超晶格电势会导致多个层间激子（IX）能级。我们通过执行时间和能量分辨的光致发光测量结果来证明这种MoiréIXS之间的级联反应。我们表明，低能量的MoiréIX可能会对更高的能量兴奋，从而促进IX种群反转。
Cascade transition between energy levels has important applications, such as in quantum information protocols and quantum cascade lasers. In two-dimensional heterostructure, the moiré superlattice potential can result in multiple interlayer exciton (IX) energy levels. We demonstrate the cascade transitions between such moiré IXs by performing time- and energy-resolved photoluminescence measurements. We show that the lower-energy moiré IX can be excited to higher-energy ones, facilitating IX population inversion.
