Terahertz optoelectronics of quantum rings and nanohelices
T.P. Collier, A.M. Alexeev, C.A. Downing, O.V. Kibis, M.E. Portnoi
TL;DR
This paper explores the potential of quantum rings and nanohelices in terahertz devices, demonstrating control over radiation polarization and revealing negative differential conductance in nanohelices.
Contribution
It introduces novel proposals for using quantum rings and nanohelices in terahertz technology, including polarization control and superlattice property analysis.
Findings
Control over terahertz radiation polarization in quantum rings.
Negative differential conductance observed in nanohelices.
Potential applications in terahertz device engineering.
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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