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arXiv · 1903.07342

Terahertz optoelectronics of quantum rings and nanohelices

T. P. Collier·A. M. Alexeev·C. A. Downing·O. V. Kibis·M. E. Portnoi
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Abstract

We outline a range of proposals on using quantum rings and nanohelices for terahertz device implementations. We show that an Aharonov-Bohm quantum ring system and a double-gated quantum ring system both permit control over the polarization properties of the associated terahertz radiation. In addition, we review the superlattice properties of a mathematically similar system, that of a nanohelix in external electric fields, which reveals negative differential conductance.

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T. P. Collier, A. M. Alexeev, C. A. Downing, O. V. Kibis, M. E. Portnoi. 2019-03-18. Terahertz optoelectronics of quantum rings and nanohelices. https://doi.org/10.1134/s1063782618140075

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