Email this article Terahertz Optoelectronics of Quantum Rings and Nanohelices
- Authors: Collier T.P.1, Alexeev A.M.1, Downing C.A.2, Kibis O.V.3, Portnoi M.E.1,4
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Affiliations:
- School of Physics, University of Exeter, Stocker Road
- Department of Theoretical Physics, Universidad Autonoma de Madrid
- Department of Applied and Theoretical Physics, Novosibirsk State Technical University
- ITMO University
- Issue: Vol 52, No 14 (2018)
- Pages: 1813-1816
- Section: Infrared Microwave Phenomena in Nanostructures
- URL: https://journals.rcsi.science/1063-7826/article/view/205011
- DOI: https://doi.org/10.1134/S1063782618140075
- ID: 205011
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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.
About the authors
T. P. Collier
School of Physics, University of Exeter, Stocker Road
Email: M.E.Portnoi@exeter.ac.uk
United Kingdom, Exeter, EX4 4QL
A. M. Alexeev
School of Physics, University of Exeter, Stocker Road
Email: M.E.Portnoi@exeter.ac.uk
United Kingdom, Exeter, EX4 4QL
C. A. Downing
Department of Theoretical Physics, Universidad Autonoma de Madrid
Email: M.E.Portnoi@exeter.ac.uk
Spain, Madrid, 28049
O. V. Kibis
Department of Applied and Theoretical Physics, Novosibirsk State Technical University
Email: M.E.Portnoi@exeter.ac.uk
Russian Federation, Novosibirsk, 630092
M. E. Portnoi
School of Physics, University of Exeter, Stocker Road; ITMO University
Author for correspondence.
Email: M.E.Portnoi@exeter.ac.uk
United Kingdom, Exeter, EX4 4QL; St. Petersburg, 197101
