Resonant Photon Drag of Dipolar Excitons

The theory of the photon drag of dipolar excitons in double-quantum-well nanostructures is presented. It is shown that the exciton-drag flux density features a resonant behavior if the photon frequency is close to some transition frequency in the discrete exciton spectrum. When the structure is irra...

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Bibliographic Details
Published in:JETP letters 2018-06, Vol.107 (12), p.737-741
Main Authors: Boev, M. V., Kovalev, V. M., Savenko, I. G.
Format: Article
Language:English
Subjects:
Angular momentum
Atomic
Biological and Medical Physics
Biophysics
Drag
Excitation spectra
Excitons
Flux density
Molecular
Nanostructure
Optical and Plasma Physics
Optics And Laser Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Polarized light
Quantum Information Technology
Quantum wells
Resonant photons
Solid State Physics
Spintronics
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Summary:The theory of the photon drag of dipolar excitons in double-quantum-well nanostructures is presented. It is shown that the exciton-drag flux density features a resonant behavior if the photon frequency is close to some transition frequency in the discrete exciton spectrum. When the structure is irradiated with polarized light, the resonant enhancement of the drag current occurs when the photon energy coincides with the energy of an excited level of the exciton internal motion and the components of the angular momentum of internal motion in the initial and final states differ by one. The proposed effect can be used to control exciton transport in nanostructures based on a two-dimensional exciton gas.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364018120044