论文标题
由游离电子介导的光学相干传递
Optical coherence transfer mediated by free electrons
论文作者
论文摘要
从理论上讲，我们研究了由时间调制的电子束产生的阴极发光（CL）发射的量子含量特性。具体而言，我们考虑了以前由激光场塑造的电子的Cl的量子光学相关性。这里的主要预测是发射CL场与电子调节激光器之间存在相关性，即使发射强度和光谱轮廓与电子状态无关。另外，CL场的一致性扩展到激光频率的谐波。由于电子束可以集中在一个埃斯特罗姆以下，因此它们传递光学连贯性的能力可以实现纳米级量子系统的超精确激发，操纵和光谱。
We investigate theoretically the quantum-coherence properties of the cathodoluminescence (CL) emission produced by a temporally modulated electron beam. Specifically, we consider the quantum-optical correlations of CL from electrons that are previously shaped by a laser field. The main prediction here is the presence of phase correlations between the emitted CL field and the electron-modulating laser, even though the emission intensity and spectral profile are independent of the electron state. In addition, the coherence of the CL field extends to harmonics of the laser frequency. Since electron beams can be focused to below one Angstrom, their ability to transfer optical coherence could enable ultra precise excitation, manipulation, and spectroscopy of nanoscale quantum systems.
