Absolute photonic band gaps in 12-fold symmetric photonic quasicrystals

X. Zhang*, Z. Q. Zhang, C. T. Chan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

160 Scopus citations


A recent publication [Nature (London) 404, 740 (2000)] claimed that absolute photonic gaps can be realized in 12-fold quasicrystalline arrangement of small airholes in a matrix of silicon nitride or glass. The result is rather surprising since silicon nitride (n = 2.02) and in particular, glass (n = 1.45) have rather low refractive index. In this work, we have studied the transmission properties of the same systems by using the multiplescattering method. We found that the 12-fold triangle-square tiling is indeed very good for the realization of photonic gaps and we found absolute gaps in systems with airholes in dielectric, dielectric cylinders in air, and metal cylinders in air. However, for the case of air-holes in a dielectric background, absolute gaps appear only when the dielectric contrast is sufficiently high, and both silicon nitride and glass have refractive indices below the threshold.

Original languageEnglish (US)
Article number081105
Pages (from-to)811051-811054
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
StatePublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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