Regensburg 2010 – wissenschaftliches Programm
HL 60.27: Poster
Donnerstag, 25. März 2010, 18:00–20:00, Poster D1
Polarization sensitive cross-sectional microphotoluminescence of disorder in AlGaAs/GaAs quantum wells
— •Lars Liebermeister and Rainer G. Ulbrich —
IV. Physikalisches Institut, Georg-August Univ. Göttingen, Germany
Polarization sensitive microphotolumniescence measurement is used to create a map of local width and orientation of a quantum well. Atomic disorder causes variation in thickness and local orientation of the quantum well. The emission of exciton states - confined in the quantum well potential - is polarized depending on the orientation of the confinement. This in-plane polarization has been measured with cross-sectional mircophotolumniescence, which gives information about width and orientation of the local quantum well.