EXCITONS - LINEAR AND NONLINEAR-OPTICAL EFFECTS

Authors
GIRLANDA R
Citation
R. Girlanda, EXCITONS - LINEAR AND NONLINEAR-OPTICAL EFFECTS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 15(2-3), 1993, pp. 253-257
Citations number
16
Categorie Soggetti
Physics
Journal title
Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics → ACNP
ISSN journal
03926737
Volume
15
Issue
2-3
Year of publication
1993
Pages
253 - 257
Database
ISI
SICI code
0392-6737(1993)15:2-3<253:E-LANE>2.0.ZU;2-J
Abstract
Selection rules and polarization dependence properties of one- and two -photon optical spectroscopies to exciton states in semiconductors are briefly discussed. The non-local effects in the description of the ex citon in semiconductors are also considered and their importance is sh own by presenting a gauge-invariant calculation of the two-photon tran sition rates to 2p Wannier excitons states in a two-band model.