Gap deformation and classical wave localization in disordered two-dimensional photonic-band-gap materials

Journal Article · Mon May 15 04:00:00 EDT 2000 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.61.13458· OSTI ID:20216555

Lidorikis, E ^[1]; Sigalas, M M ^[1]; Economou, E N ^[2]; Soukoulis, C M ^[1]

---

1. Ames Laboratory-U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
2. Research Center of Crete-FORTH and Department of Physics, University of Crete, Heraklion, Crete 71110, (Greece)

By using two ab initio numerical methods, we study the effects that disorder has on the spectral gaps and on wave localization in two-dimensional photonic-band-gap materials. We find that there are basically two different responses depending on the lattice realization (solid dielectric cylinders in air or vice versa), the wave polarization, and the particular form under which disorder is introduced. Two different pictures for the photonic states are employed, the ''nearly free'' photon and the ''strongly localized'' photon. These originate from the two different mechanisms responsible for the formation of the spectral gaps, i.e., multiple scattering and single scatterer resonances, and they qualitatively explain our results. (c) 2000 The American Physical Society.

• OSTI ID: 20216555
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 20 Vol. 61; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC MATERIALS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ENERGY GAP
MULTIPLE SCATTERING
PHOTONS
POLARIZATION
THEORETICAL DATA
TWO-DIMENSIONAL CALCULATIONS