We investigate dense relativistic electron mirror generation from a micro-droplet driven by circularly polarized Laguerre–Gaussian lasers. The surface electrons are expelled from the droplet by the laser’s radial electric field and evolve into dense sheets after leaving the droplet. These electrons are trapped in the potential well of the laser’s transverse ponderomotive force and are steadily accelerated to about 100 MeV by the longitudinal electric field. Particle-in-cell simulations indicate that the relativistic electron mirrors are characterized by high beam charge, narrow energy spread, and large angular momentum, which can be utilized for bright $\mathrm{X}/\gamma$-ray emission and photon vortex formation.

中文翻译：

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Laguerre-Gaussian激光辐照微滴的致密相对论电子镜

我们研究了由圆偏振Laguerre-Gaussian激光器驱动的微滴产生的相对论电子镜的致密性。激光的径向电场将表面电子从液滴中排出，并在离开液滴后演变成致密的薄片。这些电子被俘获在激光器的横向质动力的势阱中，并被纵向电场稳定地加速到大约100 MeV。单元中的粒子模拟表明，相对论电子镜的特征是高束电荷，窄能量散布和大角动量，可用于明亮$\mathrm{X}/\gamma$射线发射和光子涡旋形成。