Scholarlink

<p>The scattering of light by relativistic charged particles is a fundamental process in electrodynamics, underpinning phenomena ranging from cosmic ray interactions to laboratory X-ray generation. While the spectral and temporal properties of this process are well understood, the polarization-dependent response as a function of incidence angle has remained largely unexplored. Here we report the experimental observation of a relativistic analog to the Brewster effect in the interaction between a high-brightness relativistic electron beam and an optical laser pulse at shallow incidence. For incident radiation polarized in the plane of scattering, Lorentz-transformations predict a distinct interaction angle at which photon emission is suppressed in the forward direction, in close analogy with Brewster reflection at dielectric interfaces. These results connect a central concept of classical optics to the relativistic electron-photon scattering and highlight polarization as a controllable degree of freedom in light-matter interactions involving high-energy particle beams.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Observation of a relativistic analog of the Brewster effect in electron-photon scattering

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月28日

查看全文
  • Brian Schaap,
  • Maximilian Lenz,
  • Pietro Musumeci

摘要

The scattering of light by relativistic charged particles is a fundamental process in electrodynamics, underpinning phenomena ranging from cosmic ray interactions to laboratory X-ray generation. While the spectral and temporal properties of this process are well understood, the polarization-dependent response as a function of incidence angle has remained largely unexplored. Here we report the experimental observation of a relativistic analog to the Brewster effect in the interaction between a high-brightness relativistic electron beam and an optical laser pulse at shallow incidence. For incident radiation polarized in the plane of scattering, Lorentz-transformations predict a distinct interaction angle at which photon emission is suppressed in the forward direction, in close analogy with Brewster reflection at dielectric interfaces. These results connect a central concept of classical optics to the relativistic electron-photon scattering and highlight polarization as a controllable degree of freedom in light-matter interactions involving high-energy particle beams.