30 citations
- Institute of MathematicsPL3 papers
- Institute of PhysicsPL3 papers
- Bydgoszcz University of Science and TechnologyPL1 paper
- Frantsevich Institute for Problems in Materials ScienceUA1 paper
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ1 paper
- Institute of Mathematics and PhysicsBJ1 paper
- Kazimierz Wielki University in BydgoszczPL1 paper
- Lviv UniversityUA1 paper
- Nicolaus Copernicus UniversityPL1 paper
- Polish Academy of SciencesPL1 paper
- University of TartuEE1 paper
7 papers
Dynamics of Cu2O Rydberg Excitons -- Kerr Effect and Quantum Beats
Gerard Czajkowski
We investigate the nonlinear refraction and the nonlinear Kerr phase shift which are due to Rydberg excitons induced in Cu2O crystal by short-time pulses. We observe the phenomenon…
Optical to microwave frequency conversion with Rydberg excitons
David Ziemkiewicz, Sylwia Zielińska-Raczyńska
A novel, copper-based plasmonic system is presented to provide optical to microwave photon conversion. The process uses highly excited levels in Cu2O Rydberg excitons and takes adv…
Copper plasmonics with excitons
David Ziemkiewicz, Sylwia Zielińska-Raczyńska
We investigate the propagation of surface plasmons (SPPs) in a thin layer of copper surrounded by copper oxide CuO. It is shown that particularly strong excitons in CuO can…
Nonlinear optical properties and Kerr nonlinearity of Rydberg excitons in CuO quantum wells
David Ziemkiewicz, Gerard Czajkowski, Karol Karpiński +1
The quantum confiment of Rydberg excitons (REs) in quantum structures opens the way towards considering nonlinear interactions in such systems. We present a theoretical calculation…
DFT calculations of magnetic anisotropy energy for GeMnTe ferromagnetic semiconductor
A. Łusakowski, P. Bogusławski, T. Story
Density functional theory (DFT) calculations of the energy of magnetic anisotropy for diluted ferromagnetic semiconductor GeMnTe were performed using using OpenMX package with full…
Time-resolved spectroscopy of exciton states in single crystals, single crystalline films and powders of YAlO_3 and YAlO_3:Ce
V. Babin, L. Grigorjeva, I. Kondakova +6
Luminescence characteristics of single crystals (SC), single crystalline films (SCF), powders and ceramics of YAlO_3 and YAlO_3:Ce have been studied at 4.2-300 K under photoexcitat…