In this report a model of a tunable narrow linewidth laser used for telecommunications is presented. The model uses both theoretical analysis and experimental data to create the mathematical models governing its behaviour and is aimed to be useful in a development environment with requirements on accuracy, efficient implementation and adaptability ...
In diesem Handbuch für Lehrkräfte werden die aktuellen Ratingskalen und Fragebögen sowie ihre Konstruktion für den Lernbereich Verhalten und Empfinden beschrieben. Seit dem Herbst 2018 beinhaltet die Onlineplattform Levumi Ratingskalen zur Verhaltensverlaufsmessung und Fragebögen zur sozialen Partizipation. Mit der Verlaufsdiagnostik für das Verhal...
Wir haben ein multidimensionales direct behavior rating (DBR-MIS) mit verschiedenen Dimensionen für die Bereiche externalisierendes und internalisierendes Verhalten sowie für schulbezogenes, prosoziales Verhalten entwickelt. Dabei wurde sich an etablierten Screening Verfahren, wie dem Fragebogen über Stärken und Schwächen (SDQ; Goodman, 1997, 2001;...
A heterogeneously integrated InP-on-silicon fast tunable filtered feedback laser is demonstrated. The laser device consists of a main Fabry-Pérot cavity connected to an integrated arrayed waveguide grating of which the outputs form external cavities in which semiconductor optical amplifiers can be switched to provide single-mode operation and tunab...
Published in Journal of the Korean Physical Society
In this study, we have deposited the AlGaN thin films for distributdd Bragg reflector (DBR). We investigated effects of Al content (18.0% ~ 47.2%) and III/V ratio (1437 4792) on AlGaN thin film. We analyzed image of grown AlGaN epi-layer by FE-SEM. There are different growth behaviors depending on III/V ratio under the greatest Al contents. Therefo...
Ph.D.
Electrically driven optoelectronic devices based on ZnO nano/microstructures have been presented in this dissertation. First, an electrically pumped Sb-doped ZnO nanowire/Ga-doped ZnO p–n homojunction random laser is demonstrated. Catalyst-free Sb-doped ZnO nanowires were grown on a Ga-doped ZnO thin film on a Si substrate by chemical vapor deposit...
Electrically driven optoelectronic devices based on ZnO nano/microstructures have been presented in this dissertation. First, an electrically pumped Sb-doped ZnO nanowire/Ga-doped ZnO p–n homojunction random laser is demonstrated. Catalyst-free Sb-doped ZnO nanowires were grown on a Ga-doped ZnO thin film on a Si substrate by chemical vapor deposit...
Electrically driven optoelectronic devices based on ZnO nano/microstructures have been presented in this dissertation. First, an electrically pumped Sb-doped ZnO nanowire/Ga-doped ZnO p–n homojunction random laser is demonstrated. Catalyst-free Sb-doped ZnO nanowires were grown on a Ga-doped ZnO thin film on a Si substrate by chemical vapor deposit...
Electrically driven optoelectronic devices based on ZnO nano/microstructures have been presented in this dissertation. First, an electrically pumped Sb-doped ZnO nanowire/Ga-doped ZnO p–n homojunction random laser is demonstrated. Catalyst-free Sb-doped ZnO nanowires were grown on a Ga-doped ZnO thin film on a Si substrate by chemical vapor deposit...
