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標題: Optical line-shape and the time-domain photon echo measurement in semiconductor quantum dots
作者: Kral, K.
Khas, Z.
Lin, C.Y.
Lin, S.H.
關鍵字: quantum dots;nanoparticles;line-shape;line-width;optical transitions
Project: Optics Communications
期刊/報告no:: Optics Communications, Volume 180, Issue 4-6, Page(s) 271-275.
It is shown theoretically that, because of the characteristic line-shape of the electronic spectral density, the experimental photon-echo signal, giving the dephasing of the electronic state of a quantum dot, should be modulated in time quasi-periodically. This suggestion is demonstrated numerically for the case of Inks quantum dots for several temperatures of the sample. A comparison with the recent experiments on CdSe nanocrystals is presented. The theoretical argumentation is based on the recent theoretical calculation of the homogeneous optical line-shape based on the multiple electron-LO-phonon scattering in quantum dots. (C) 2000 Elsevier Science B.V. All rights reserved.
ISSN: 0030-4018
DOI: 10.1016/s0030-4018(00)00722-7
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