Abstract
We present a dephasing time analysis of the excitonic resonances in Ge/SiGe quantum wells for various lattice temperatures by coherent oscillation spectroscopy (COS). The results are compared to the linewidths of the excitonic resonances determined from linear absorption measurements. Additionally, COS is applied to different samples with varying linewidth, identifying one sample with a dominating homogeneously broadened 1 excitonic resonance down to 7 K.
- Received 21 August 2012
- Corrected 11 April 2013
DOI:https://doi.org/10.1103/PhysRevB.86.201303
©2012 American Physical Society
Corrections
11 April 2013