Lasing dynamics in single ZnO nanorods.
We study the lasing dynamics of individual ZnO nanorods by time-resolved mu-photoluminescence. The distinct laser modes show gain competition and pronounced shifts as a function of excitation density. This behavior can be understood in terms of many-particle effects within an inverted electron-hole plasma and of the calculated mode spectra of the particular nanorod, whose geometry is known from electron microscope investigations.
Fallert
Johannes
J
Institut für Angewandte Physik, Universität Karlsruhe (TH), Wolfgang-Gaede-Str. 1,76131 Karlsruhe, Germany. jfallert@aph.uni-karlsruhe.de
Stelzl
Felix
F
Zhou
Huijuan
H
Reiser
Anton
A
Thonke
Klaus
K
Sauer
Rolf
R
Klingshirn
Claus
C
Kalt
Heinz
H
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008962:Models, Theoretical; D043942:Nanotubes / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D015034:Zinc Oxide / Q000737:chemistry* / Q000528:radiation effects*
D015034:Zinc Oxide