Abstract
Transient four-wave mixing (TFWM) has been extensively used during the last few years to study exciton dynamics in semiconductors and in semiconductor heterostructures. These studies have provided significant insight into exciton dynamics in both ordered and disordered systems. There are, nevertheless, still certain aspects of the excitonic TFWM response that are not completely understood. In particular, a complete understanding of the polarization and intensity dependences of the signai strength, the decay of the time-integrated signal, and the temporal characteristics of the time-resolved signal has proven elusive. Recent theoretical and experimental work has indicated that exciton-exciton interactions are important.1·2 Such interactions include incoherent processes, such as excitation-induced dephasing, and the formation of biexcitons. Additionally, some of the phenomena result from disorder, making them sample dependent.
© 1995 Optical Society of America
PDF ArticleMore Like This
R. Hellmann, S. T. Cundiff, M. Koch, J. Feldmann, E. O. Göbel, G. Mackh, A. Waag, and G. Landwehr
QThF5 Quantum Electronics and Laser Science Conference (CLEO:FS) 1995
J. Kuhl, E. J. Mayer, G. O. Smith, K. Bott, V. Heuckeroth, T. Meier, P. Thomas, S. W. Koch, R. Hey, and K. Ploog
QFD6 Quantum Electronics and Laser Science Conference (CLEO:FS) 1995
K. B. Ferrio, Nicolas Bonadeo, Duncan G. Steel, and Kuwata-Gonokami Makoto
QFB1 Quantum Electronics and Laser Science Conference (CLEO:FS) 1995