Session 4B Physical properties of low temperature GaAs/InP strained heterojunction: Micro-Raman spectroscopy and X-ray diffraction study F. Dubecký, R. Srnánek, C. Ferrari, E. Gombia, R. Kúdela, J. John Optical properties of multilayer semiconductor structures S. Jurečka, E. Pinčík, R. Brunner A study of the effects of the base doping profile on SiGe heterojunction bipolar transistor R. Kinder, P. Beňo, F. Schwierz, L. Hulényi, J. Breza, A. Grmanová Technology and characterisation of AlGaAs/GaAs gradient heterostructures for photodetector applications D. Radziewicz, B. Ściana, M. Wośko, A. Szyszka, R. Paszkiewicz, B. Paszkiewicz, M. Tłaczała Horizontal cavity surface emitting laser studied by near-field scanning optical microscopy D. Pudiš, J. Kováč jr., J. Kováč, I. Martinček, A. Šatka, V. Gottschalch, B. Rheinländer Parylene insulation layers for organic FETs J. Jakabovič, J. Kováč, S. Ďatko, D. Oravec, R. Resel Influence of chemical composition in phosphate ion conductive glasses on acoustic attenuation spectra P. Hockicko, P. Bury, M. Jamnický, I. Jamnický Domain wall mobility in Co-based amorphous wire M. Kladivová, J. Ziman, B. Zagyi