Author: Vasyliev, A.
Paper Title Page
TUPAB247 Influence of the Profile of the Dielectric Structure on the Electric Fields Excited by a Laser in Dielectric Accelerators Based on Chip 2026
 
  • A. Vasyliev, O.O. Bolshov, K. Galaydych, A.I. Povrozin, G.V. Sotnikov
    NSC/KIPT, Kharkov, Ukraine
  
  Funding: The National Research Foundation of Ukraine, program "Leading and Young Scientists Research Support" (project # 2020.02/0299).
To pro­vide ex­per­i­men­tal re­searches at the NSC KIPT the­o­ret­i­cal stud­ies and com­pu­ta­tions of the elec­tron ac­cel­er­a­tion in a di­elec­tric laser ac­cel­er­a­tor have been car­ried out. Laser ac­cel­er­a­tor con­sists of two pe­ri­odic quartz struc­tures on dif­frac­tion grat­ings or Chips, sym­met­ri­cally lo­cated along both sides of the vac­uum ac­cel­er­at­ing chan­nel. Using PIC nu­mer­i­cal sim­u­la­tions, elec­tro­mag­netic fields ex­cited by laser ra­di­a­tion with a wave­length of 800 nm in di­elec­tric laser ac­cel­er­a­tors were in­ves­ti­gated. The in­flu­ence of the shape and depth of the pro­file of dif­frac­tion grat­ings or Chip struc­tures on the dis­tri­b­u­tion of the elec­tric field in the in­ter­ac­tion space has been stud­ied. For mod­el­ing, dif­fer­ent types of pro­files were taken, both in se­r­ial and a unique struc­ture. In con­se­quence of the analy­sis of the ob­tained re­sults, es­ti­mated ef­fi­ciency of ac­cel­er­a­tion was de­fined for each type of pro­file. The rec­tan­gu­lar pro­file of the dif­frac­tion grat­ing with the max­i­mum ac­cel­er­at­ing gra­di­ent was se­lected as op­ti­mal for the next ex­per­i­ments. 		 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB247  
About • paper received ※ 19 May 2021       paper accepted ※ 31 May 2021       issue date ※ 11 August 2021  
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