144 citations · 832 across the 44 of their papers we have counts for
3 papers · 1 filter
Spin-relaxation time in the impurity band of wurtzite semiconductors
Pablo I. Tamborenea, Thomas Wellens, Dietmar Weinmann +1
The spin-relaxation time for electrons in the impurity band of semiconductors with wurtzite crystal structure is determined. The effective Dresselhaus spin-orbit interaction Hamilt…
Cooperative scattering of scalar waves by optimized configurations of point scatterers
Frank Schäfer, Felix Eckert, Thomas Wellens
We investigate multiple scattering of scalar waves by an ensemble of resonant point scatterers in three dimensions. For up to scatterers, we numerically optimize the p…
Optimal trapping of monochromatic light in designed photonic multilayer structures
Fabian Spallek, Andreas Buchleitner, Thomas Wellens
We devise an optimised bi-component multi-layered dielectric stack design to enhance the local irradiance for efficient photovoltaic upconversion materials. The field intensity pro…