ISSN:
0392-6737
Schlagwort(e):
Brillouin and Rayleigh scattering
;
Polaritons (including photon-phonon and photon-magnon interactions)
;
Electron states in low-dimensional structures (including quantum wells, superlattices, layer structures and intercalation compounds)
;
Conference proceedings
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Summary Resonant Brillouin scattering in ultrathin MBE-grown epitaxial layers of ZnSe with thicknesses from 50 to 200 nm is esployed to investigate the properties of the 1s exciton-polariton states. The effective masses are found different from that in bulk ZnSe caused by the energetic decoupling of heavy- and light-hole states due to strain. In the 50 nm sample the momentum selection rule is relaxed, leading to broad Brillouin lines that show fine structure due to the phonon quantization in these layers, whereby dilatation and flexural phonon modes are involved in the scattering.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02457275
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