论文标题
量子限制的rydberg激子中的cu $ _2 $ o纳米颗粒
Quantum confined Rydberg excitons in Cu$_2$O nanoparticles
论文作者
论文摘要
Rydberg激子的量子限制是利用其大型非线性用于量子应用的重要一步。我们观察到Cu $ _2 $ o的天然纳米颗粒中的Rydberg激子。我们决心在散装cu $ _2 $ o cu $ _2 $ o cu $ _2 $ o cu $ n = 12 $的主要量子数量中，最多可从同一晶体中提取的纳米颗粒中的$ n = 6 $。纳米颗粒中的激子过渡被扩大，其振荡器强度降低为$ \ propto n^{ - 4} $，而散装的振动量（降低为$ \ propto n^{ - 3} $）。我们通过包括纳米颗粒中激子状态的量子限制的影响来解释我们的结果。我们的结果提供了对cu $ _2 $ o rydberg激素的物理学的理解。
The quantum confinement of Rydberg excitons is an important step towards exploiting their large nonlinearities for quantum applications. We observe Rydberg excitons in natural nanoparticles of Cu$_2$O. We resolve up to the principal quantum number $n=12$ in a bulk Cu$_2$O crystal and up to $n=6$ in nanoparticles extracted from the same crystal. The exciton transitions in nanoparticles are broadened and their oscillator strengths decrease as $\propto n^{-4}$ compared to those in the bulk (decreasing as $\propto n^{-3}$). We explain our results by including the effect of quantum confinement of exciton states in the nanoparticles. Our results provide an understanding of the physics of Cu$_2$O Rydberg excitons in confined dimensions.
