Pfalz, S.; Winkler, R.; Ubbelohde, N.; Hägele, D.; Oestreich, Michael
(College Park, MD : American Physical Society, 2012)
We study the optical orientation of electron spins in GaAs/AlGaAs quantum wells for excitation in the growth direction and for in-plane excitation. Time- and polarization-resolved photoluminescence excitation measurements ...