Magnetic-field tunable photonic stop band in metallodielectric photonic crystals

M. Golosovsky*, Y. Neve-Oz, D. Davidov

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We fabricated an artificial crystal consisting of a stack of containers with magnetizable ferromagnetic spheres. In the absence of external magnetic field the particles are in disordered state while in the presence of the field the particles self-assemble in almost a perfect hexagonal order. The degree of order is controlled by magnetic field. We study magnitude and phase of the frequency-dependent mm-wave transmission through the stack as a function of magnetic field. In the ordered state there are well-defined photonic stopbands separated by the regions where transmission is close to unity ("transparency windows") while in the disordered state these regions mostly disappear. By varying magnetic field we achieve effective tuning of the mm-wave transmission through the stack.

Original languageEnglish
Pages (from-to)705-709
Number of pages5
JournalSynthetic Metals
Issue number3
StatePublished - 9 Oct 2003
Externally publishedYes
EventProceedings of the Fifth International Topical Conference - Venice, Italy
Duration: 9 Feb 200314 Feb 2003


  • Magnetic field
  • Photonic crystal
  • Self-assembly
  • Stopband
  • Tunability


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