论文标题
由三维光相调制制备的高纯度自由电子动量状态
High-purity free-electron momentum states prepared by three-dimensional optical phase modulation
论文作者
论文摘要
我们证明了光子能量和横向动量向高氧化电子束的量化转移。在超快透射电子显微镜中，通过通过激光灌输的薄石墨板传输梁来诱导电子波函数的三维相调制。这种全光自电子相位空间控制可导致线性动量状态的高纯度叠加，为光学上可编程的电子相和梁拆分器提供了基本组件。
We demonstrate the quantized transfer of photon energy and transverse momentum to a high-coherence electron beam. In an ultrafast transmission electron microscope, a three-dimensional phase modulation of the electron wavefunction is induced by transmitting the beam through a laser-illuminated thin graphite sheet. This all-optical free-electron phase space control results in high-purity superpositions of linear momentum states, providing an elementary component for optically programmable electron phase plates and beam splitters.
