We present a systematic study of the advantages of using optical artificial materials in designing periodic structures for laser-driven accelerators. As a case study, we investigate the electromagnetic properties of a Bragg waveguide, with its alternating layers being composed of artificial materials. The layers can be optimized to maximize the structure's properties. We show that when the structure's eigenmode interacts with free electrons, the maximum efficiency is nearly four times higher than in configurations that rely on natural materials. As a result, accelerators and radiation sources may be miniaturized significantly.

中文翻译：

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光学布拉格加速器的超材料

我们对使用光学人造材料在设计激光驱动加速器的周期结构方面的优势进行了系统研究。作为案例研究，我们研究了布拉格波导的电磁特性，其交替层由人造材料组成。可以优化层以最大化结构的特性。我们表明，当结构的本征模式与自由电子相互作用时，最大效率比依赖天然材料的配置高出近四倍。因此，加速器和辐射源可以显着小型化。