Mode Confinement in Photonic Quasi-Crystal Point-Defect Cavities for Particle Accelerators
Abstract
In this Letter, we present a study of the confinement properties of point-defect resonators in finite-size photonic-bandgap structures composed of aperiodic arrangements of dielectric rods, with special emphasis on their use for the design of cavities for particle accelerators. Specifically, for representative geometries, we study the properties of the fundamental mode (as a function of the filling fraction, structure size, and losses) via 2-D and 3-D full-wave numerical simulations, as well as microwave measurements at room temperature. Results indicate that, for reduced-size structures, aperiodic geometries exhibit superior confinement properties by comparison with periodic ones.
Keywords
Cite
@article{arxiv.0809.4997,
title = {Mode Confinement in Photonic Quasi-Crystal Point-Defect Cavities for Particle Accelerators},
author = {E. Di Gennaro and S. Savo and A. Andreone and V. Galdi and G. Castaldi and V Pierro and M. R. Masullo},
journal= {arXiv preprint arXiv:0809.4997},
year = {2009}
}
Comments
4 pages, 4 figures, accepted for publication in Applied Physics Letters