论文标题
rydberg激子的非线性光学特性和kerr非线性在cu $ _2 $ o量子井中
Nonlinear optical properties and Kerr nonlinearity of Rydberg excitons in Cu$_2$O quantum wells
论文作者
论文摘要
量子结构中Rydberg激子（RES）的量子混乱为考虑在此类系统中的非线性相互作用开辟了道路。在量子与电磁波孔中的RES之间的非线性耦合的情况下，我们介绍了光学函数的理论计算。使用真实密度矩阵方法（RDMA），得出了线性和非线性吸收的分析表达式，并进行了Cu $ _2 $ 0量子孔的数值计算。结果表明，在线性和非线性光谱中可以观察到量子井隔限状态的条件。研究了这种系统中的Kerr非线性和自相度调制。还讨论了Rydberg封锁和相关的光学漂白的影响，并面临可用的实验数据。
The quantum confiment of Rydberg excitons (REs) in quantum structures opens the way towards considering nonlinear interactions in such systems. We present a theoretical calculation of optical functions in the case of a nonlinear coupling between REs in a quantum well with an electromagnetic wave. Using the Real Density Matrix Approach (RDMA), the analytical expressions for a linear and nonlinear absorption are derived and numerical calculations for Cu$_2$0 quantum wells are performed. The results indicate the conditions in which quantum well confinement states can be observed in linear and nonlinear optical spectra. The Kerr nonlinearity and self-phase modulation in such a system are studied. The effect of Rydberg blockade and the associated optical bleaching are also discussed and confronted with available experimental data.
