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arXiv · 1807.03220

TaAs Weyl semimetal based one-dimensional photonic structures

Ilka Kriegel·Michele Guizzardi·Francesco Scotognella
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Abstract

Weyl semimetals can be described as the three-dimensional analogue of graphene, showing linear dispersion around nodes (Weyl points) [1]. Tantalum arsenide (TaAs) is among the most studied Weyl semimetals. It has been demonstrated that TaAs has a very high value of the real part of the complex refractive index in the infrared region [2]. In this work we show one-dimensional photonic crystals alternating TaAs with SiO2 or TiO2 and a microcavity where a layer of TaAs is embedded between two SiO2-TiO2 multilayer.

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Ilka Kriegel, Michele Guizzardi, Francesco Scotognella. 2018-07-09. TaAs Weyl semimetal based one-dimensional photonic structures. https://arxiv.org/abs/1807.03220

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