2 papers
physics.optics2017
Enhancement of bulk second-harmonic generation from silicon nitride films by material composition
K. Koskinen, R. Czaplicki, A. Slablab +8
We present a comprehensive tensorial characterization of second-harmonic generation from silicon nitride films with varying composition. The samples were fabricated using plasma-en…
cond-mat.mes-hall2004
Density Functional Theory of Multicomponent Quantum Dots
K. Karkkainen M. Koskinen, S. M. Reimann, M. Manninen
Quantum dots with conduction electrons or holes originating from several bands are considered. We assume the particles are confined in a harmonic potential and assume the electrons…