AI 中文总结
针对激光驱动相对论电子束能量增益的失相难题，提出双激光方案，利用横向电场缓解失相以实现高效能量转移，为紧凑型高效率电子加速器提供了新途径。
AI 中文摘要
激光驱动的相对论电子束实现显著能量增益仍具挑战，原因是加速激光场与电子间存在失相。研究表明，与激光偏振平面对齐的横向电场可缓解失相，在不损害束流方向性的前提下实现大幅能量增益。作为实际方案，提出双激光方案：一束激光产生横向电场，另一束驱动电子加速。通过调整相互作用几何，该配置可维持相位锁定、增强能量转移，为紧凑型高效率电子加速器开辟了途径。
英文摘要
Achieving significant energy gain in laser-driven relativistic electron beams remains challenging due to dephasing between the accelerating laser field and the electrons. We show that transverse electric fields, when aligned with the plane of laser polarization, can mitigate dephasing and enable substantial energy gain without compromising beam directionality. As a practical realization, we propose a two-laser scheme in which one laser generates the transverse field while the other drives electron acceleration. By tailoring the interaction geometry, this configuration sustains phase locking, enhances energy transfer, and opens a pathway toward compact, high-efficiency electron accelerators.
