论文标题
在有声子耦合的情况下，电磁诱导的透明度具有cu $ _2 $ o激子
Electromagnetically induced transparency with Cu$_2$O excitons in the presence of phonon coupling
论文作者
论文摘要
cu $ _2 $ o半导体中激发的rydberg状态激发态，为探索和控制固态环境中的强粒子相互作用提供了一种有希望的方法。一个主要的障碍是源于激发型偶联和位于rydberg激发谱的造成的实质吸收背景，从而削弱了激子相互作用的影响。在这里，我们证明在电磁诱导的透明度（EIT）条件下，Rydberg激发量的两光子激发可用于控制这种背景。基于描述已知的单光子吸收光谱的微观理论，我们分析了两光子EIT允许将光学Rydberg激发与声子诱导的吸收背景区分开的条件，甚至完全抑制了它。因此，我们的发现为在非线性光学和其他应用程序中使用Cu $ _2 $ o激子剥削Rydberg Blockade铺平了道路。
Highly excited Rydberg states of excitons in Cu$_2$O semiconductors provide a promising approach to explore and control strong particle interactions in a solid-state environment. A major obstacle has been the substantial absorption background that stems from exciton-phonon coupling and lies under the Rydberg excitation spectrum, weakening the effects of exciton interactions. Here, we demonstrate that two-photon excitation of Rydberg excitons under conditions of electromagnetically induced transparency (EIT) can be used to control this background. Based on a microscopic theory that describes the known single-photon absorption spectrum, we analyze the conditions under which two-photon EIT permits separating the optical Rydberg excitation from the phonon-induced absorption background, and even suppressing it entirely. Our findings thereby pave the way for the exploitation of Rydberg blockade with Cu$_2$O excitons in nonlinear optics and other applications.
