Zobrazeno 1 - 10
of 41
pro vyhledávání: '"David Ziemkiewicz"'
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-8 (2024)
Abstract Rydberg excitons in Cu2O feature giant optical nonlinearities. To exploit these nonlinearities for quantum applications, the confinement must match the Rydberg blockade size, which in Cu2O could be as large as a few microns. Here, in a top-d
Externí odkaz:
https://doaj.org/article/df17ec34aea84b1a94f1092c51a9dec0
Publikováno v:
Sensors, Vol 21, Iss 15, p 4974 (2021)
A novel, two-parameter modification of a Drude model, based on fractional time derivatives, is presented. The dielectric susceptibility is calculated analytically and simulated numerically, showing good agreement between theoretical description and n
Externí odkaz:
https://doaj.org/article/7a9177737be44ba3a2ffda143ac58ab7
Publikováno v:
Sensors, Vol 21, Iss 12, p 4096 (2021)
We theoretically investigate the surface plasmon polaritons (SPPs) generated on an Al film covered by an Al2O3 layer in the context of their application as refractive index sensors. The calculated reflection spectra indicate SPP resonance excited by
Externí odkaz:
https://doaj.org/article/48357619599f4a3d9fcc74800fa7d988
Autor:
David Ziemkiewicz
Publikováno v:
Entropy, Vol 22, Iss 2, p 177 (2020)
In this paper, we show that Electromagnetically Induced Transparency (EIT) can be realized in mediums with Rydberg excitons. With realistic, reliable parameters which show good agreement with optical and electro-optical experiments, as well as the pr
Externí odkaz:
https://doaj.org/article/5ca5e1da678d49989af4140323692430
Publikováno v:
Entropy, Vol 22, Iss 2, p 160 (2020)
By mapping photons into the sample of cuprous oxide with Rydberg excitons, it is possible to obtain a significant optical phase shift due to third-order cross-Kerr nonlinearities realized under the conditions of electromagnetically induced transparen
Externí odkaz:
https://doaj.org/article/a6ec2aa64d7f40b599df2e2ad7a21cf7
Autor:
Sylwia Zielińska-Raczyńska, Dmitry A Fishman, Clément Faugeras, Marek M P Potemski, Paul H M van Loosdrecht, Karol Karpiński, Gerard Czajkowski, David Ziemkiewicz
Publikováno v:
New Journal of Physics, Vol 21, Iss 10, p 103012 (2019)
Recent experimental and theoretical work on hydrogen-like absorption spectra of excitons in external magnetic fields revealed new effects when the Coulomb interaction becomes comparable to the magnetic perturbation. We present a theoretical approach
Externí odkaz:
https://doaj.org/article/728f3a73b2ab4453a5c4f7b706b675be
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b6095e8c9f9f7ef4b5c278c442a2bad
https://doi.org/10.1103/physrevb.107.195303
https://doi.org/10.1103/physrevb.107.195303
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::719707cb21720259fa8c7d1bc1465ab6
https://doi.org/10.1103/physrevb.106.085431
https://doi.org/10.1103/physrevb.106.085431
We investigate the propagation of surface plasmons (SPPs) in a thin layer of copper surrounded by copper oxide Cu$_2$O. It is shown that particularly strong excitons in Cu$_2$O can have considerable impact on plasmon propagation, providing many oppor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdd434ad1550a8bcc9250c784cb7655c
http://arxiv.org/abs/2208.07184
http://arxiv.org/abs/2208.07184
Autor:
Corentin Morin, Jérôme Tignon, Juliette Mangeney, Sukhdeep Dhillon, Gerard Czajkowski, Karol Karpiński, Sylwia Zielińska-Raczyńska, David Ziemkiewicz, Thomas Boulier
Publikováno v:
Physical review letters. 129(13)
We investigate the nonlinear refraction induced by Rydberg excitons in Cu_{2}O. Using a high-precision interferometry imaging technique that spatially resolves the nonlinear phase shift, we observe significant shifts at extremely low laser intensity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3da8452f0c8cdf4965c4dd43dcfb742
https://pubmed.ncbi.nlm.nih.gov/36206429
https://pubmed.ncbi.nlm.nih.gov/36206429