activity
20192021
most citedQuantum confined Rydberg excitons in CuO nanoparticles

22 citations · 76 across the 6 of their papers we have counts for

collaborators

7 papers

cond-mat.mes-hall2021★ 4 cited

Electro-optical properties of excitons in CuO quantum wells: II continuum states

David Ziemkiewicz, Gerard Czajkowski, Karol Karpiński +1

We present theoretically calculated optical functions for CuO quantum well (QW) with Rydberg excitons in an external, homogeneous electric field parallel to the QW planes for t…

cond-mat.mes-hall2021★ 6 cited

Electro-optical properties of excitons in CuO quantum wells: I discrete states

David Ziemkiewicz, Gerard Czajkowski, Karol Karpiński +1

We present theoretical results of the calculations of optical functions for CuO quantum well (QW) with Rydberg excitons in an external homogeneous electric field of an arbitrar…

physics.comp-ph2021

Fractional Derivative Modification of a Drude Model

Karol Karpiński, Sylwia Zielińska - Raczyńska, David Ziemkiewicz

A modification of the Drude dispersive model based on fractional time derivative is presented. The dielectric susceptibility is calculated analytically and simulated numerically, s…

cond-mat.mes-hall2020★ 22 cited

Quantum confined Rydberg excitons in CuO nanoparticles

Konstantinos Orfanakis, Sai Kiran Rajendran, Hamid Ohadi +4

The quantum confinement of Rydberg excitons is an important step towards exploiting their large nonlinearities for quantum applications. We observe Rydberg excitons in natural nano…

cond-mat.mes-hall2020★ 9 cited

Rydberg Magnetoexcitons in CuO Quantum Wells

David Ziemkiewicz, Gerard Czajkowski, Karol Karpiński +1

We present theoretical approach that allows for calculation of optical functions for CuO Quantum Well (QW) with Rydberg excitons in an external magnetic field of an arbitrary f…

cond-mat.mes-hall2019★ 14 cited

Excitons in Cu2O -- from Quantum Wells to Bulk Crystals and Additional Boundary Conditions for Rydberg Exciton-Polaritons

David Ziemkiewicz, Karol Karpiński, Sylwia Zielińska-Raczyńska +1

We propose a scheme for calculation of optical functions of a semiconductor with Rydberg excitons, for a wide interval of dimensions. We start with 2-dimensional structure, then go…

cond-mat.mes-hall2019★ 21 cited

Nonlinear Optical Properties and Self-Kerr Effect of Rydberg Excitons in CuO

Sylwia Zielińska-Raczyńska, Gerard Czajkowski, Karol Karpiński +1

We show how to compute the nonlinear optical functions (absorption, reflection, and transmission) for a medium with Rydberg excitons, including the effect of the coherence between…