LOW-TEMPERATURE 2ND-HARMONIC GENERATION IN GALLIUM SELENIDE UNDER RESONANT EXCITATION OF THE DIRECT FREE-EXCITONS

Citation
K. Allakhverdiev et al., LOW-TEMPERATURE 2ND-HARMONIC GENERATION IN GALLIUM SELENIDE UNDER RESONANT EXCITATION OF THE DIRECT FREE-EXCITONS, Solid state communications, 93(2), 1995, pp. 147-150
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
ISSN journal
00381098
Volume
93
Issue
2
Year of publication
1995
Pages
147 - 150
Database
ISI
SICI code
0038-1098(1995)93:2<147:L2GIGS>2.0.ZU;2-W
Abstract
Second harmonic generation in epsilon-GaSe was measured at 10K when th e energy of the excited laser radiation passed through the absorption band of the ground state of the direct free excitons. The resonant beh avior was observed and qualitatively explained using the three-band mo del, taking into account also the input to nonlinear response from hig her lying energy level in the conduction band.