DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2008 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

O: Fachverband Oberflächenphysik

O 94: Methods: Other Experimental Techniques II

O 94.4: Talk

Friday, February 29, 2008, 12:45–13:00, MA 141

XRR investigations of II-VI and III-nitrid based DBR-structures, multilayers and superlattices. — •Radowan Hildebrand, Thomas Schmidt, Ardalan Zargham, Moritz Speckmann, Carsten Kruse, Detlef Hommel, and Jens Falta — Institute of Solid State Physics, University of Bremen, Germany

Thin layers, especially distributed bragg reflectors (DBR), are important components in vertical cavity surface emitting laser (VCSEL)- structures. The investigation of AlN/InGaN and MgS/ZnCdSe DBR structures with the method of x-ray reflection (XRR) enables the determination of electron density, multilayer thickness and roughness of the interfaces. Reducing the roughness is of peculiar interest to achieve high reflective DBRs.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2008 > Berlin