Physical Review Special Topics. Accelerators and Beams (Jul 2009)

Wakefields in photonic crystal cavities

  • Gregory R. Werner,
  • Carl A. Bauer,
  • John R. Cary

DOI
https://doi.org/10.1103/physrevstab.12.071301
Journal volume & issue
Vol. 12, no. 7
p. 071301

Abstract

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Simulations of charged particle beams in accelerator cavities show that a two-dimensional photonic crystal can be used to create a three-dimensional hybrid cavity with a single operating mode and no significant higher order modes, greatly reducing long-range wakefields. Optimizing the photonic crystal cavity to reduce radiation leakage in the desired mode (of a finite-sized structure) yields even lower wakefields. Wakefields in photonic crystal cavities are compared to those in metal pillbox cavities.