Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2011-10-14
Phys. Rev. B 85, 064301 (2012)
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
10.1103/PhysRevB.85.064301
This article presents experimental results on properties of waves propagating in an unbounded and a bounded photonic crystal consisting of metallic cylinders which are arranged in a triangular lattice. First, we present transmission measurements of plane waves traversing a photonic crystal. The experiments are performed in the vicinity of a Dirac point, i.e., an isolated conical singularity of the photonic band structure. There, the transmission shows a pseudodiffusive 1/L dependence, with $L$ being the thickness of the crystal, a phenomenon also observed in graphene. Second, eigenmode intensity distributions measured in a microwave analog of a relativistic Dirac billiard, a rectangular microwave billiard that contains a photonic crystal, are discussed. Close to the Dirac point states have been detected which are localized at the straight edge of the photonic crystal corresponding to a zigzag edge in graphene.
Bittner S.
Dietz Barbara
Miski-Oglu M.
Richter Achim
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