Unusual modes and photonic gaps in a Vicsek waveguide network

Details Unusual modes and photonic gaps in a Vicsek waveguide network Unusual modes and photonic gaps in a Vicsek waveguide network

2005-01-18

arxiv.org/abs/cond-mat/0501409v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

13 pages, 6 figures

Scientific paper

10.1016/j.physleta.2005.04.051

We propose a simple model of a waveguide network designed following the growth rule of a Vicsek fractal. We show, within the framework of real space renormalization group (RSRG) method, that such a design may lead to the appearance of unusual electromagnetic modes. Such modes exhibit an extended character in RSRG sense. However, they lead to a power law decay in the end-to-end transmission of light across such a network model as the size of the network increases. This, to our mind, may lead to an observation of power law localization of light in a fractal waveguide network. The general occurence of photonic band gaps and their change as a function of the parameters of the system are also discussed.

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