Hollow-Core Photonic Band Gap Fibers for Particle Acceleration

Journal Article · Fri Aug 19 04:00:00 EDT 2011 · Submitted to Physical Review Special Topics - Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.14.121303· OSTI ID:1022492

Noble, Robert J; Spencer, James E; Kuhlmey, Boris T

Photonic band gap (PBG) dielectric fibers with hollow cores are being studied both theoretically and experimentally for use as laser driven accelerator structures. The hollow core functions as both a longitudinal waveguide for the transverse-magnetic (TM) accelerating fields and a channel for the charged particles. The dielectric surrounding the core is permeated by a periodic array of smaller holes to confine the mode, forming a photonic crystal fiber in which modes exist in frequency pass-bands, separated by band gaps. The hollow core acts as a defect which breaks the crystal symmetry, and so-called defect, or trapped modes having frequencies in the band gap will only propagate near the defect. We describe the design of 2-D hollow-core PBG fibers to support TM defect modes with high longitudinal fields and high characteristic impedance. Using as-built dimensions of industrially-made fibers, we perform a simulation analysis of the first prototype PBG fibers specifically designed to support speed-of-light TM modes.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1022492
• Report Number(s): SLAC-PUB-14031
• Journal Information: Submitted to Physical Review Special Topics - Accelerators and Beams, Journal Name: Submitted to Physical Review Special Topics - Accelerators and Beams
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
43 PARTICLE ACCELERATORS
ACCELERATION
ACCELERATORS
Accelerators
ACCPHY
OPTICS
CHARGED PARTICLES
DEFECTS
DESIGN
DIELECTRIC MATERIALS
DIMENSIONS
FIBERS
IMPEDANCE
LASERS
SIMULATION
SYMMETRY
WAVEGUIDES