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arXiv · 2003.06690

Landau levels in strained two-dimensional photonic crystals

J. Guglielmon·M. C. Rechtsman·M. I. Weinstein
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Abstract

The principal use of photonic crystals is to engineer the photonic density of states, which controls light-matter coupling. We theoretically show that strained 2D photonic crystals can generate artificial electromagnetic fields and highly degenerate Landau levels. Since photonic crystals are not described by tight-binding, we employ a multiscale expansion of the full wave equation. Using numerical simulations, we observe dispersive Landau levels which we show can be flattened by engineering a pseudoelectric field. Artificial fields yield a design principle for aperiodic nanophotonic systems.

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J. Guglielmon, M. C. Rechtsman, M. I. Weinstein. 2020-03-14. Landau levels in strained two-dimensional photonic crystals. https://doi.org/10.1103/physreva.103.013505

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