Enhanced left/right asymmetry in reflection and transmission due to a periodic multilayer of a topological insulator and an anisotropic dielectric material
Francesco Chiadini, Vincenzo Fiumara, Akhlesh Lakhtakia, Antonio Scaglione
发表信息:
Applied Optics, Vol. 58, No. 7, pp. 1724-1732 (2019)
Very weak left/right asymmetry in reflection and transmission is offered by a layer of a topological insulator on top of a layer of an anisotropic dielectric material, but it can be enhanced very significantly by using a periodic multilayer of both types of materials. This is an attractive prospect for realizing one-way terahertz devices, because both types of materials can be grown using standard physical-vapor-deposition techniques.
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