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arXiv · 1310.4998

Zak phase of photons in optical waveguide lattices

Stefano Longhi
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Abstract

Zak phase, i.e. the Berry phase acquired during an adiabatic motion of a Bloch particle across the Brillouin zone, provides a measure of the topological invariant of Bloch bands in one-dimensional crystalline potentials. Here a photonic structure, based on engineered lattices of evanescently-coupled optical waveguides, is proposed to detect Zak phase difference of photons undergoing Bloch oscillations in topologically distinct Bloch bands of dimerized superlattices.

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Stefano Longhi. 2013-10-18. Zak phase of photons in optical waveguide lattices. https://doi.org/10.1364/ol.38.003716

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