Title 



Phononassisted optical transitions in diskshaped quantum dots
 
Author 



 
Abstract 



Phononassisted photoluminescence and Raman scattering have been theoretically studied in nanosize InAs/GaAs disks, which represent a model for selfassembled quantum dots. Optical phonons are considered within a multimode dielectric model taking into account a finite number of vibrational modes in a quantum dot. The dependence of the Raman and the photoluminescence spectra on the size of the quantum dots is analysed. For excitation of quantum dots with radii smaller than the average radius for the statistical ensemble of quantum dots, the ratio of the intensities of the onephonon to zerophonon peaks in the photoluminescence spectrum increases.   
Language 



English
 
Source (book) 



International Symposium on Advanced Luminescent Materials and Quantum, Confinement, at the 196th Meeting of the ElectrochemicalSociety, Oct. 1820, 1999, Honolulu, HI  
Publication 



Pennington : Electrochemical Society, 1999
 
ISBN 



1566772451
 
Volume/pages 



99:22(1999), p. 160171
 
ISI 



000083176000015
 
