Abstract:
It is shown that the free-carrier (Drude) absorption of circularly polarized radiation in quantum well structures leads to an electric current flow. The photocurrent reverses its direction upon switching the light helicity. A pure orbital mechanism of such a circular photogalvanic effect is proposed that is based on interference of different pathways contributing to the light absorption. Calculation shows that the magnitude of the helicity dependent photocurrent in n-doped quantum well structures corresponds to recent experimental observations.
Citation:
S. A. Tarasenko, “Orbital mechanism of the circular photogalvanic effect in quantum wells”, Pis'ma v Zh. Èksper. Teoret. Fiz., 85:3 (2007), 216–221; JETP Letters, 85:3 (2007), 182–186
\Bibitem{Tar07}
\by S.~A.~Tarasenko
\paper Orbital mechanism of the circular photogalvanic effect in quantum wells
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2007
\vol 85
\issue 3
\pages 216--221
\mathnet{http://mi.mathnet.ru/jetpl973}
\transl
\jour JETP Letters
\yr 2007
\vol 85
\issue 3
\pages 182--186
\crossref{https://doi.org/10.1134/S0021364007030113}
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-34247387900}
Linking options:
https://www.mathnet.ru/eng/jetpl973
https://www.mathnet.ru/eng/jetpl/v85/i3/p216
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