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Quantum kinetic exciton-LO-phonon interaction in CdSe

Woggon, U., Gindele, F., Langbein, Wolfgang Werner and Hvam, J. 2000. Quantum kinetic exciton-LO-phonon interaction in CdSe. Physical Review B 61 (3) , pp. 1935-1940. 10.1103/PhysRevB.61.1935

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Oscillations with a period of ∼150 fs are observed in the four-wave mixing (FWM) signal of bulk CdSe and interpreted in terms of non-Markovian exciton–LO-phonon scattering. The experiments show evidence of phonon quantum kinetics in semiconductors of strong polar coupling strength and high exciton binding energy. By comparison of the spectral and temporal response of the FWM signal in bulk CdSe and CdSe quantum dots, we demonstrate the influence of continuum states on the interference of electron-hole pair polarizations coupled via an LO phonon.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Physical Society
ISSN: 0163-1829
Last Modified: 04 Jun 2017 08:01

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