Magnetically controllable intra-Brillouin-zone band gaps in one-dimensional helicoidal magnetophotonic crystals

Fei Wang, A. Lakhtakia

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Interleaving magnetophotonic garnet layers with layers of a structurally chiral material (SCM) leads to a one-dimensional helicoidal magnetophotonic crystal, the interaction of whose overall period and the helicoidal period of the SCM layers leads to intra-Brillouin-zone photonic band gaps which depend on the structural handedness of the SCM layers and whose gap widths are magnetically controllable. Even as the overall period grows very large, one photonic band gap remains unaffected as it is due to the helicoidal period. Also, the gap widths can be magnetically decreased by turning up the magnitude of the externally impressed dc magnetic field.

Original languageEnglish (US)
Article number193102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number19
DOIs
StatePublished - May 1 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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