Optimized operation of dielectric laser accelerators: Multibunch

Adi Hanuka,Levi Schächter

doi:10.1103/physrevaccelbeams.21.064402

Abstract

Optimized operation of dielectric laser accelerators: Multibunch

Highlights

In the past two decades direct electron acceleration driven by laser was experimentally demonstrated
Bounded by gradient limitations (∼100 MV/m), it has been shown [1,2,3] that net acceleration could be achieved by a train of microbunches spaced at the optical period
The question is could we benefit from both worlds—namely, have net acceleration and at the same time high gradient in the Dielectric laser accelerator (DLA)?

Summary

INTRODUCTION

In the past two decades direct electron acceleration driven by laser was experimentally demonstrated. Dielectric laser accelerator (DLA) structures have the potential to facilitate higher gradients and high efficiency, as was recently demonstrated [7,8]. These experiments utilized an electron beam that was much longer than the laser period, resulting in energy modulation rather than net acceleration. In the framework of this paper we repeat the selfconsistent analysis presented in [26] for a train of microbunches, accounting for the beam loading reduction on the material (i.e., reduced case).

LASER PULSE TAPERING

SELF-CONSISTENT ANALYSIS

Findings

CONCLUSION