Open AccessLasing dynamics in single ZnO nanorods
Author(s) -
J. Fallert,
Felix Stelzl,
Huijuan Zhou,
Anton Reiser,
Klaus Thonke,
R. Sauer,
C. Klingshirn,
H. Kalt
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.001125
Subject(s) - nanorod , lasing threshold , photoluminescence , materials science , optics , excitation , laser , molecular physics , optoelectronics , nanotechnology , physics , quantum mechanics
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.