SHarD: A beam dynamics simulationcode for dielectric laser acceleratorsbased on spatial harmonic field expansion
arXiv:2107.11410 · doi:10.1016/j.nima.2021.165635
Abstract
In order to demonstrate acceleration of electrons to relativistic scales by an on chipdielectric laser accelerator (DLA), a ponderomotive focusing scheme capable of capturingand transporting electrons through nanometer-scale apertures over extended interactionlengths has been proposed. We present a Matlab-based numerical code (SHarD) utilizinga spatial harmonic expansion of the fields within the dielectric structure to simulate theevolution of the beam phase space distribution in this scheme. The code can be usedto optimize key-parameters for the accelerator performance such as the final energy,transverse spot size evolution and total number of electrons accelerated through currentlyfabricated structures. Eventually, the simulation model will be applied to inform thephase mask profile to be added to a pulse front tilt drive laser pulse using a liquid crystalmask in the experimental setup being assembled at UCLA Pegasus Laboratory.
arXiv comment12 pages, 4 figures, 1 table, Manuscript Accepted at NIM-A
References in corpus (5)
- Alternating Phase Focusing for Dielectric Laser Acceleration
- Enhanced energy gain in a dielectric laser accelerator using a tilted pulse front laser
- Dielectric-laser electron acceleration in a dual pillar grating with a distributed Bragg reflector
- Beam Dynamics Analysis of Dielectric Laser Acceleration using a Fast 6D Tracking Scheme
- All Optical Control of Beam Dynamics in a DLA