Interaction of excitons localized by a CdTe/ZnTe quantum well fluctuation potential with nonequilibrium acoustic phonons

It is found that the phonon flux generated by an external source induces a change of the luminescence bandshape of an ultrathin quantum well CdTe/ZnTe excited quasi-resonantly by a He-Ne laser. The effect of nonequilibrium phonons manifests itself even at small lasing power and large distance betwee...

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Bibliographic Details
Published in:Nanotechnology 2001-12, Vol.12 (4), p.607-609
Main Authors: Onishchenko, E E, Bagaev, V S, Zaitsev, V V, Galkina, T I, Sharkov, A I
Format: Article
Language:English
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Summary:It is found that the phonon flux generated by an external source induces a change of the luminescence bandshape of an ultrathin quantum well CdTe/ZnTe excited quasi-resonantly by a He-Ne laser. The effect of nonequilibrium phonons manifests itself even at small lasing power and large distance between the phonon generation zone and the quasi-resonant luminescence excitation zone. It is assumed that the phonon flux induces the tunnel transitions between localized exciton states; these transitions are accompanied by stimulated phonon emission. (Author)
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/12/4/347