Zobrazeno 1 - 10
of 427
pro vyhledávání: '"MaćKowski, S."'
Autor:
Baranowski, M., Surrente, A., Klopotowski, L., Urban, J. M., Zhang, N., Maude, D. K., Wiwatowski, K., Mackowski, S., Kung, Y. C., Dumcenco, D., Kis, A., Plochocka, P.
Stacking atomic monolayers of semiconducting transition metal dichalcogenides (TMDs) has emerged as an effective way to engineer their properties. In principle, the staggered band alignment of TMD heterostructures should result in the formation of in
Externí odkaz:
http://arxiv.org/abs/1709.04150
Autor:
Kula, S., Szlapa-Kula, A., Kotowicz, S., Filapek, M., Bujak, K., Siwy, M., Janeczek, H., Maćkowski, S., Schab-Balcerzak, E.
Publikováno v:
In Dyes and Pigments December 2018 159:646-654
Autor:
Szlapa-Kula, A., Kula, S., Filapek, M., Fabianczyk, A., Bujak, K., Siwy, M., Kotowicz, S., Janeczek, H., Smolarek, K., Maćkowski, S., Krompiec, S., Schab-Balcerzak, E.
Publikováno v:
In Journal of Luminescence April 2018 196:244-255
We study spin dynamics of excitons confined in self-assembled CdSe quantum dots by means of optical orientation in magnetic field. At zero field the exciton emission from QDs populated via LO phonon-assisted absorption shows a circular polarization o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411036
Autor:
Mackowski, S., Gurung, T., Jackson, H. E., Smith, L. M., Heiss, W., Kossut, J., Karczewski, G.
We observe a strong dependence of the exciton spin relaxation in CdTe quantum dots on the average dot size and the depth of the confining potential. For the excitons confined to the as-grown CdTe quantum dots we find the spin relaxation time to be 4.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409507
Autor:
Gurung, T., Mackowski, S., Jackson, H. E., Smith, L. M., Heiss, W., Kossut, J., Karczewski, G.
We show that through the resonant optical excitation of spin-polarized excitons into CdMnTe magnetic quantum dots, we can induce a macroscopic magnetization of the Mn impurities. We observe very broad (4 meV linewidth) emission lines of single dots,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408658
Autor:
Hewaparakrama, K. P., Mackowski, S., Jackson, H. E., Smith, L. M., Karczewski, G., Kossut, J.
We demonstrate sub-wavelength imaging of excitons confined to single CdTe quantum dots. By combining slit-confocal microscopy with a hemispherical solid immersion lens we simultaneously map the emission of thousands of single quantum dots with a spat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408545
Autor:
Mackowski, S., Gurung, T., Nguyen, T. A., Jackson, H. E., Smith, L. M., Karczewski, G., Kossut, J.
We demonstrate that resonant excitation of CdMnTe self-assembled quantum dots creates an ensemble of spin-polarized magnetic polarons at B=0 T. The strong spatial confinement characteristic of quantum dots significantly increases the stability of mag
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403298
Autor:
Nguyen, T. A., Mackowski, S., Rho, H., Jackson, H. E., Smith, L. M., Wrobel, J., Fronc, K., Kossut, J., Karczewski, G., Dobrowolska, M., Furdyna, J.
We show that two major carrier excitation mechanisms are present in II-VI self-assembled quantum dots. The first one is related to direct excited state - ground state transition. It manifests itself by the presence of sharp and intense lines in the e
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310571
Autor:
Nguyen, T. A., Mackowski, S., Robinson, L. M., Rho, H., Jackson, H. E., Smith, L. M., Dobrowolska, M., Furdyna, J. K., Karczewski, G.
Using micro- and nano-scale resonantly excited PL and PLE, we study the excitonic structure of CdSe/ZnSe and CdTe/ZnTe self assembled quantum dots (SAQD). Strong resonantly enhanced PL is seen at one to four optic phonon energies below the laser exci
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309411