Terahertz applications of non-simply-connected and helical nanostructures
College
College of Science
Department/Unit
Physics
Document Type
Article
Source Title
NATO Science for Peace and Security Series B: Physics and Biophysics
First Page
201
Last Page
214
Publication Date
1-1-2019
Abstract
We outline a range of proposals on using non-simply-connected and helical nanostructures 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 nanohelix in external electric fields, which reveals negative differential conductance and photogalvanic effects. We present several schemes utilizing carbon nanotubes, including population inversion proposals for both quasi-metallic nanotubes (via generation of optically active hot electrons by an electric field), and metallic nanotubes (by optical excitation across a magnetic field-induced band gap). © Springer Nature B.V. 2019.
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Digitial Object Identifier (DOI)
10.1007/978-94-024-1687-9_11
Recommended Citation
Collier, T. P., Saroka, V. A., Downing, C. A., Alexeev, A. M., Hartmann, R. R., & Portnoi, M. E. (2019). Terahertz applications of non-simply-connected and helical nanostructures. NATO Science for Peace and Security Series B: Physics and Biophysics, 201-214. https://doi.org/10.1007/978-94-024-1687-9_11
Disciplines
Physics
Keywords
Nanoelectronics; Carbon nanotubes; Submillimeter waves; Graphene
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