Relevance of dephasing processes for the ultrafast rise of emission from resonantly created excitons in quantum wells

We present a comparative study of time-integrated four-wave-mixing and femtosecond emission under resonant excitation on excitons in weakly disordered GaAs quantum wells. At highest exciton densities when dephasing dominates the spectral width (homogeneous broadening), we find that the rise time of...

Full description

Bibliographic Details
Main Authors: Haacke, S, Hayes, G, Taylor, R, Deveaud, B, Zimmermann, R, BarJoseph, I
Format: Conference item
Published: 1997