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Optical Line‐Shape and Time‐Resolved Response in Quantum Dots
Author(s) -
Král K.,
Khás Z.,
Lin C.Y.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200103)224:2<453::aid-pssb453>3.0.co;2-r
Subject(s) - quantum dot , physics , quantum dot laser , coupling (piping) , signal (programming language) , modulation (music) , condensed matter physics , transmission (telecommunications) , photon , semiconductor , phonon , quantum mechanics , materials science , semiconductor laser theory , computer science , programming language , engineering , acoustics , electrical engineering , metallurgy
We deal with the question of the periodic modulation signal of the transient transmission and of the photon echo signal in polar semiconductor quantum dots. The theoretical argumentation is based on the numerical calculation of the electronic spectral densities within the two‐level model of quantum dot, with a single electron coupled to LO phonons, the coupling treated in the self‐consistent Hartree‐Fock approximation to the self‐energy. The theoretical results are compared with experiments on CdSe and InAs nanocrystals.