A tunable CdS polariton-laser

Stimulated four-photon fluorescence is observed in thin CdS platelets as a function of the laser photon energy and the angle of incidence at different observation configurations. It is understood as phase-matched two-photon absorption with successive phase-matched two-photon emission, which arise by...

Full description

Saved in:
Bibliographic Details
Published in:Solid state communications 1981-01, Vol.38 (1), p.31-36
Main Authors: Baumert, R., Broser, I.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Stimulated four-photon fluorescence is observed in thin CdS platelets as a function of the laser photon energy and the angle of incidence at different observation configurations. It is understood as phase-matched two-photon absorption with successive phase-matched two-photon emission, which arise by internal reflection whereby the laser beam is self-intersecting. With this special kind of k -vector spectroscopy a consistent set of parameters for the dispersion curves of the A- and B-exciton could be derived. The strong angle dependency of the emitted photon energy, the sharpness of the fluorescence line and the high conversion rate of the exciting light represents a new tunable parametric system.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(81)91157-1