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arXiv · 2308.03932

Mu-Metal Enhancement of Effects in Electromagnetic Fields Over Single Emitters Near Topological Insulators

Eitan Dvorquez·Benjamín Pavez·Qiang Sun·Felipe Pinto·Andrew D. Greentree·Brant C. Gibson·Jerónimo R. Maze
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Abstract

We focus on the transmission and reflection coefficients of light in systems involving of topological insulators (TI). Due to the electro-magnetic coupling in TIs, new mixing coefficients emerge leading to new components of the electromagnetic fields of propagating waves. We have discovered a simple heterostructure that provides a 100-fold enhancement of the mixing coefficients for TI materials. Such effect increases with the TI's wave impedance. We also predict a transverse deviation of the Poynting vector due to these mixed coefficients contributing to the radiative electromagnetic field of an electric dipole. Given an optimal configuration of the dipole-TI system, this deviation could amount to $0.18\%$ of the Poynting vector due to emission near not topological materials, making this effect detectable.

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Eitan Dvorquez, Benjamín Pavez, Qiang Sun, Felipe Pinto, Andrew D. Greentree, Brant C. Gibson, Jerónimo R. Maze. 2023-08-07. Mu-Metal Enhancement of Effects in Electromagnetic Fields Over Single Emitters Near Topological Insulators. https://arxiv.org/abs/2308.03932

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