14 citations · 28 across the 9 of their papers we have counts for
10 papers
Rydberg excitons in core-shell nanostructures II. Plasmon-exciton interaction and enhancement
David Ziemkiewicz, Gerard Czajkowski, Sylwia Zielińska-Raczyńska
Interaction between Rydberg excitons in core-shell CuO nanostructures and surface plasmons is investigated. An enhancement of a quadrupole transitions to the Rydberg exciton st…
Rydberg excitons in core-shell nanostructures I. Optical properties
Sylwia Zielińska-Raczyńska, Gerard Czajkowski, David Ziemkiewicz
Optical properties of CuO-metal core-shell nanostructures containing Rydberg excitons are examined. Calculations of electron and hole eigenfunctions and eigenenergies are used…
Optical properties of excitons in CdSe nanoplatelets and disks: real density matrix approach
David Ziemkiewicz, Gerard Czajkowski, Sylwia Zielińska-Raczyńska
We show how to calculate the optical functions of a nanoplatelet, taking into account the effect of a dielectric confinement on excitonic states. Real density matrix approach is em…
Two-photon absorption in silicon using real density matrix approach
David Ziemkiewicz, David Knez, Evan P. Garcia +7
Two-photon absorption in indirect gap semiconductors is an frequently encountered, but not well-understood phenomenon. To address this, the Real Density Matrix Approach is applied…
Optical properties of Rydberg excitons in CuO based superlattices
David Ziemkiewicz, Gerard Czajkowski, Sylwia Zielińska-Raczyńska
Combining the microscopic calculation of superlattice minibands and the macroscopic real density matrix approach one can obtain electric susceptibilities of the superlattice system…
Superlens with copper and copper oxide
David Ziemkiewicz, Karol Karpiński, Sylwia Zielińska - Raczyńska
We investigate the imaging properties of copper-based superlens surrounded by copper oxide (CuO). A subwavelength image resolution of the order is demonstrated theoretica…
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…
Self-Kerr effect across the yellow Rydberg series
Corentin Morin, Jérôme Tignon, Juliette Mangeney +6
We investigate the nonlinear refraction induced by Rydberg excitons in . Using a high-precision interferometry imaging technique that spatially resolves the nonline…
Ultraslow long-living plasmons with electromagnetically induced transparency
David Ziemkiewicz, Karolina Słowik, Sylwia Zielińska-Raczyńska
We analytically examine propagation of surface plasmon polaritons (SPPs) at a thin metallic film between glass substrate and electromagnetically-induced-transparency (EIT) medium.…