论文标题
发光中的超级挑战:一种主方程方法
Superbunching in cathodoluminescence: a master equation approach
论文作者
论文摘要
我们提出了一个用于阴极发光(CL)的主方程的理论模型。主方程描述了通过传入的电子和单个发射器的辐射衰减对多个发射器的同时激发。我们研究了该模型的归一化二阶相关函数,$ g^{(2)}(τ)$。我们得出了零时间延迟相关的确切公式,$ g^{(2)}(0)$,并证明该模型成功地描述了CL中的巨型束(Superbinking)。我们还得出了$ g^{(2)}(τ)$的近似形式,该形式对于较小的激发率有效。此外,我们讨论了Cl的辐射场状态。我们揭示了超级挑战是由激发光子状态和真空状态的混合物产生的,并且这种类型的状态在CL中实现。
We propose a theoretical model of a master equation for cathodoluminescence (CL). The master equation describes simultaneous excitation of multiple emitters by an incoming electron and radiative decay of individual emitters. We investigate the normalized second-order correlation function, $g^{(2)}(τ)$, of this model. We derive the exact formula for the zero-time delay correlation, $g^{(2)}(0)$, and show that the model successfully describes giant bunching (superbunching) in the CL. We also derive an approximate form of $g^{(2)}(τ)$, which is valid for small excitation rate. Furthermore, we discuss the state of the radiation field of the CL. We reveal that the superbunching results from a mixture of an excited photon state and the vacuum state and that this type of state is realized in the CL.