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FIR absorption in CdSe quantum dot ensembles
Vasilevskiy, Mikhail; Rolo, Anabela G.; Artemyev, Mikhail; Filonovich, Sergey; Gomes, M. J. M.; Rakovich, Yury P.Absorption of far-infrared (FIR) radiation in very small CdSe crystallites (quantum dots, QDs) via excitation of confined dipolar vibrational modes was studied, both theoretically and experimentally. Spatial quantisation of optical phonons was analysed in the framework of a continuum model, which couples the phonon amplitude to the electrostatic potential via the Fro¨ hlich interaction. The frequencies and osci...
Data: 2001
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Origem: RepositóriUM - Universidade do Minho
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