1.
Opt Lett
; 7(7): 307-9, 1982 Jul 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-19714002
RESUMEN
Third-order time-dependent perturbation theory, utilizing parabolic and nonparabolic energy bands and calculated (from band structure) higher bands as intermediate levels, and a Keldysh first-order model are used to calculate three-photon-absorption coefficients of several direct-gap crystals. Third-order perturbation results for CdS at 1.06 microm agree well with the experimental data.