Comparing photonic band structure calculation methods for diamond and pyrochlore crystals

E. C. M. Vermolen, Job Thijssen, A. Moroz, M. Megens, A. van Blaaderen

Research output: Contribution to journalArticlepeer-review

Abstract

The photonic band diagrams of close-packed colloidal diamond and pyrochlore structures, have been studied using Korringa-Kohn-Rostoker (KKR) and plane-wave calculations. In addition, the occurrence of a band gap has been investigated for the binary Laves structures and their constituent large- and small-sphere substructures. It was recently shown that these Laves structures give the possibility to fabricate the diamond and pyrochlore structures by self-organization. The comparison of the two calculation methods opens the possibility to study the validity and the convergence of the results, which have been an issue for diamond-related structures in the past. The KKR calculations systematically give a lower value for the gap width than the plane-wave calculations. This difference can partly be ascribed to a convergence issue in the plane-wave code when a contact point of two spheres coincides with the grid. (C) 2009 Optical Society of America

Original languageEnglish
Pages (from-to)6952-6961
Number of pages10
JournalOptics Express
Volume17
Issue number9
DOIs
Publication statusPublished - 27 Apr 2009

Keywords

  • MULTIPLE-SCATTERING THEORY
  • SPONTANEOUS EMISSION
  • GAPS
  • POTENTIALS
  • LATTICES
  • SYSTEMS
  • SPHERES

Fingerprint

Dive into the research topics of 'Comparing photonic band structure calculation methods for diamond and pyrochlore crystals'. Together they form a unique fingerprint.

Cite this