论文标题
慢电子在能量域中的自我诱捕
Self-trapping of slow electrons in the energy domain
论文作者
论文摘要
光和迅速电子的相互作用已实现了电子波袋的相相关操作和加速度。在这里，我们在一个新的方案中研究了这种相互作用，低能电子（〜20-200 eV）与相匹配的光场相互作用。我们的分析和一维数值研究表明，由于电子分散液的非呈曲率，慢电子在能量域中受到强限制。光谱陷阱是可调的，适当的光场参数可以选择将相互作用动力学降低到两个能量状态。捕获电子的能力扩大了电子束物理，自由电子量子光学元件和量子模拟器的范围。
The interaction of light and swift electrons has enabled phase-coherent manipulation and acceleration of electron wavepackets. Here we investigate this interaction in a new regime where low-energy electrons (~20-200 eV) interact with a phase-matched light field. Our analytical and one-dimensional numerical study shows that slow electrons are subject to strong confinement in the energy domain due to the non-vanishing curvature of the electron dispersion. The spectral trap is tunable and an appropriate choice of light field parameters can reduce the interaction dynamics to only two energy states. The capacity to trap electrons expands the scope of electron beam physics, free-electron quantum optics and quantum simulators.
