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arXiv · 1511.08159

The stability of polarisation singularities in disordered photonic crystal waveguides

Ben Lang·Daryl M. Beggs·Andrew B. Young·John G. Rarity·Ruth Oulton
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Abstract

The effects of short range disorder on the polarisation characteristics of light in photonic crystal waveguides were investigated using finite difference time domain simulations with a view to investigating the stability of polarisation singularities. It was found that points of local circular polarisation (C-points) and contours of linear polarisation (L-lines) continued to appear even in the presence of high levels of disorder, and that they remained close to their positions in the ordered crystal. These results are a promising indication that devices exploiting polarisation in these structures are viable given current fabrication standards.

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Ben Lang, Daryl M. Beggs, Andrew B. Young, John G. Rarity, Ruth Oulton. 2015-11-25. The stability of polarisation singularities in disordered photonic crystal waveguides. https://doi.org/10.1103/physreva.92.063819

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