3 papers
cond-mat.str-el2002
Hot exciton transport in ZnSe quantum wells
Hui Zhao, Sebastian Moehl, Sven Wachter +1
The in-plane transport of excitons in ZnSe quantum wells is investigated directly by microphotoluminescence in combination with a solid immersion lens. Due to the strong Froehlich…
physics.optics2002
Solid immersion lens-enhanced micro-photoluminescence: principle and applications
S. Moehl, Hui Zhao, B. Dal Don +2
We demonstrate the combination of a hemispherical solid immersion lens with a micro-photoluminescence setup. Two advantages introduced by the SIL, an improved resolution of 0.4 tim…
cond-mat.str-el2002
Effect of quantum confinement on exciton-phonon interactions
Hui Zhao, Sven Wachter, Heinz Kalt
We investigate the homogeneous linewidth of localized type-I excitons in type-II GaAs/AlAs superlattices. These localizing centers represent the intermediate case between quasi-two…