J. Phys.: Condens. Matter

Volume 14, Page 4035


Photonic band-gap effects and magnetic activity in dielectric composites


Stephen O’Brien and JB Pendry


We develop an effective medium description of a two-dimensional photonic band-gap medium composed of dielectric cylinders of large dielectric constant. Using the transfer matrix method we have calculated reflection coefficients for a slab of the composite and plane-wave incidence, as well as the (complex) wavevector for the infinite system. From these quantities we derive an effective permittivity and permeability for the composite. In the case of p-polarized incidence the composite displays a negative magnetic permeability at microwave  frequencies due to single-scatterer resonances in the medium.


This paper is available as a PDF file.

Valid HTML 4.0!last updated Weds 19 June13:49 BST 2002 by JBP