Photonic band gaps in materials with triply periodic surfaces and related tubular structures

Details Photonic band gaps in materials with triply periodic surfaces and related tubular structures Photonic band gaps in materials with triply periodic surfaces and related tubular structures

2003-01-21

arxiv.org/abs/cond-mat/0301392v1

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.68.115107

We calculate the photonic band gap of triply periodic bicontinuous cubic structures and of tubular structures constructed from the skeletal graphs of triply periodic minimal surfaces. The effect of the symmetry and topology of the periodic dielectric structures on the existence and the characteristics of the gaps is discussed. We find that the C(I2-Y**) structure with Ia3d symmetry, a symmetry which is often seen in experimentally realized bicontinuous structures, has a photonic band gap with interesting characteristics. For a dielectric contrast of 11.9 the largest gap is approximately 20% for a volume fraction of the high dielectric material of 25%. The midgap frequency is a factor of 1.5 higher than the one for the (tubular) D and G structures.

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