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Comment to “Effect of an electric field and nonlinear optical rectification of confined excitons in quantum dots” [W. Xie, Phys. Status Solidi B 246 , 2257 (2009)]
Author(s) -
Flórez Jefferson,
Camacho Ángela,
Ramírez Hanz Y.
Publication year - 2012
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/pssb.201248167
Subject(s) - rectification , optical rectification , exciton , dipole , physics , nonlinear optical , electric field , nonlinear system , quantum mechanics , quantum , field (mathematics) , quantum dot , condensed matter physics , nonlinear optics , quantum electrodynamics , mathematics , voltage , pure mathematics
In this comment, we review the work by Xie [Phys. Status Solidi B 246 , 2257 (2009)] on electric field effects and nonlinear optical properties of excitons confined in spherical quantum dots. We find an inconsistency in the calculation of the dipole moments, which lead to vanishing nonlinear optical results. For the same set of parameters studied by Xie, we obtain new and reliable optical rectification coefficients via a finite element approach.