Wave propagation and tunneling through periodic structures

I.V. Konoplev, P. MacInnes, A.W. Cross, A.D.R. Phelps, L. Fisher, K. Ronald

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Abstract

The phenomenon of tunneling manifests itself in nearly every field of physics. The ability to distinguish a wave tunneling through a barrier from one propagating is important for a number of applications. Here we explore the properties of the wave traveling through the band gap created by a lattice, either as a consequence of tunneling through the barrier or due to the presence of a pass band inside the gap. To observe the pass band for studying tunneling and propagating waves simultaneously, a localized lattice defect was introduced. The differences between the two phenomena are highlighted via waves' dispersion characteristics.
Original languageEnglish
Article number231110
Number of pages3
JournalApplied Physics Letters
Volume93
Issue number23
DOIs
Publication statusPublished - 8 Dec 2008

Keywords

  • crystal defects
  • photonic band gap
  • refractive index
  • tunnelling
  • wave propagation

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