Electron Vortex Beam Generation via Chiral Light-Induced Inelastic Ponderomotive Scattering,ACS Photonics

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Electron Vortex Beam Generation via Chiral Light-Induced Inelastic Ponderomotive Scattering
ACS Photonics ( IF 6.5 ) Pub Date : 2021-02-05 , DOI: 10.1021/acsphotonics.0c01650
Martin Kozák ₁

Affiliation

We propose an all-optical technique for the generation of pulsed electron vortex beams for applications in ultrafast electron microscopy. The technique is based on inelastic scattering of electrons at the ponderomotive potential of an optical traveling wave formed by two laser pulses at different frequencies. One of the optical pulses has the form of a vortex beam with nonzero orbital angular momentum (OAM). We show that the OAM can be transferred to the electron wave function, leading to the production of an electron vortex state separated from the initial state in the energy domain.

中文翻译：

通过手性光诱导的非弹性透磁散射产生电子涡旋束

我们提出了一种用于产生超快电子显微镜的脉冲电子涡流束的全光学技术。该技术基于电子的非弹性散射，该电子在由不同频率的两个激光脉冲形成的光行波的质子势上。光脉冲之一具有涡旋光束的形式，该涡旋光束具有非零的轨道角动量（OAM）。我们表明，OAM可以转移到电子波函数，从而导致在能量域中产生与初始状态分离的电子涡旋状态。

更新日期：2021-02-17

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