43 citations
- Institute of PhysicsPL6 papers
- Institute of MathematicsPL3 papers
- Polish Academy of SciencesPL3 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
- University of NottinghamGB1 paper
- University of TartuEE1 paper
11 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…
Alloy broadening of the transition to the non-trivial topological phase of Pb_{1-x}Sn_{x}Te
A. Lusakowski, P. Boguslawski, T. Story
Transition between the topologically trivial and non-trivial phase of Pb_{1-x}Sn_{x}Te alloy is driven by the increasing content of Sn, or by the hydrostatic pressure for $x<0.…
Magnetic anisotropy energy in disordered Ge_{1-x}Mn_{x}Te
A. Łusakowski, P. Bogusławski, T. Story
We theoretically analyze the influence of chemical disorder on magnetic anisotropy in Ge_{1-x}Mn_{x}Te semiconductor layers known to exhibit carrier-induced ferromagnetism and ferr…