Autor: Smoleński, T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Photoluminescence Dynamics of CdSe Quantum Dot with Single $Mn^{2+}$ Ion under Modulated Excitation
Autorzy:: Pilat, M.
Goryca, M.
Smoleński, T.
Pacuski, W.
Kossacki, P.
Powiązania:: https://bibliotekanauki.pl/articles/1377238.pdf
Data publikacji:: 2014-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.75.Jn
78.47.jd
78.67.Hc
Opis:: A quantum dot with a single magnetic ion is a perfect model system to investigate spin dynamics of a magnetic ion embedded in semiconductor matrix. In this work we present results of spin dynamics studies of $Mn^{2+}$ ion embedded in CdSe quantum dot, performed under modulated excitation of the dot. In particular, the relaxation time of the $Mn^{2+}$ ion in high magnetic field was determined.
Źródło:: Acta Physica Polonica A; 2014, 126, 5; 1212-1214
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Resonant Excitation of CdTe/ZnTe Quantum Dot Pairs as a Tool for Spectroscopic Study of the Excitonic p-States
Autorzy:: Bogucki, A.
Smoleński, T.
Goryca, M.
Koperski, M.
Wojnar, P.
Kossacki, P.
Powiązania:: https://bibliotekanauki.pl/articles/1399083.pdf
Data publikacji:: 2013-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
78.55.Et
71.70.Gm
71.35.-y
Opis:: We propose a new method of obtaining a photoluminescence spectrum of a single quantum dot in a self-assembled system of CdTe/ZnTe quantum dots. The method is based on the resonant excitation of a coupled dots pair. The comparison of the spectra in resonance and out of resonance enables the identification of a well-isolated lines related to the excitonic p-states. The application of the method allows the basic characterisation of a quantum dot, including the measurements of linear anisotropy, the excitation power dependence, and the analysis of the photoluminescence in the magnetic field.
Źródło:: Acta Physica Polonica A; 2013, 124, 5; 788-790
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Novel Multichannel Single Photon Correlations Technique Applied for the Spin Dynamics Study of a Few Mn^{2+} Ions in a CdTe/ZnTe Quantum Dot
Autorzy:: Malinowski, F.
Koperski, M.
Goryca, M.
Smoleński, T.
Golnik, A.
Kossacki, P.
Wojnar, P.
Powiązania:: https://bibliotekanauki.pl/articles/1399084.pdf
Data publikacji:: 2013-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
72.21.La
75.75.-c
Opis:: In this work we demonstrate a novel experimental approach to the study of single photon correlations. The introduction of the multichannel detection setup enables the simultaneous measurement of a large number of correlation functions for photons emitted from different energetic ranges. The advantages of this new approach were exploited in a detailed study of the biexciton-exciton recombination cascade in CdTe/ZnTe quantum dots doped with a few $Mn^{2+}$ ions. The information about the dynamics of the magnetic system in the quantum dot during the lifetime of the exciton was obtained from the analysis of the correlation functions.
Źródło:: Acta Physica Polonica A; 2013, 124, 5; 791-794
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Influence of Configuration Mixing on Energies and Recombination Dynamics of Excitonic States in CdTe/ZnTe Quantum Dots
Autorzy:: Smoleński, T.
Kazimierczuk, T.
Goryca, M.
Kossacki, P.
Gaj, J. A.
Wojnar, P.
Fronc, K.
Korkusiński, M.
Hawrylak, P.
Powiązania:: https://bibliotekanauki.pl/articles/2047951.pdf
Data publikacji:: 2011-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
78.55.Et
Opis:: We study experimentally and theoretically excitonic recombination processes in CdTe/ZnTe quantum dots. The single quantum dot photoluminescence spectrum was observed and emission lines from X, X$\text{}^{-}$, X$\text{}^{+}$ and 2X excitonic states were identified. Experimental results were analysed in the theoretical model based on the effective mass approximation. Numerical calculations of energy positions and recombination probabilities of X, X$\text{}^{-}$, X$\text{}^{+}$ and 2X were performed. Computed results reproduce correctly the order and relative positions of emission lines and ratios of radiative lifetimes.
Źródło:: Acta Physica Polonica A; 2011, 119, 5; 615-617
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Excitation Mechanisms of CdTe/ZnTe Quantum Dots under Non-Resonant and Quasi-Resonant Regime
Autorzy:: Kazimierczuk, T.
Gaj, J. A.
Golnik, A.
Goryca, M.
Nawrocki, M.
Koperski, M.
Smoleński, T.
Suffczyński, J.
Wojnar, P.
Kossacki, P.
Powiązania:: https://bibliotekanauki.pl/articles/2047917.pdf
Data publikacji:: 2011-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.67.Hc
78.55.Et
Opis:: We discuss possible mechanisms of quantum dot population control. A set of experiments, including time-resolved photoluminescence, single photon correlations, excitation correlation, and photoluminescence excitation is used to determine the actual mechanism under non-resonant and quasi-resonant regime.
Źródło:: Acta Physica Polonica A; 2011, 119, 5; 588-591
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Properties of Excitons in Quantum Dots with a Weak Confinement
Autorzy:: Gołasa, K.
Molas, M.
Goryca, M.
Kazimierczuk, T.
Smoleński, T.
Koperski, M.
Golnik, A.
Kossacki, P.
Potemski, M.
Wasilewski, Z.
Babiński, A.
Powiązania:: https://bibliotekanauki.pl/articles/1399080.pdf
Data publikacji:: 2013-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.55.Cr
78.67.Hc
Opis:: Statistical properties of neutral excitons, biexcitons and trions confined to natural quantum dots formed in the InAs/GaAs wetting layer are reported. The correlation of the trion binding energy and the biexciton binding energy was found. Magnetospectroscopic measurements of the excitons revealed also the correlation of excitonic effective $g^\ast $ factor of an exciton with the biexciton binding energy. The qualitative picture of the effect of quantum confinement on the observed correlations is presented.
Źródło:: Acta Physica Polonica A; 2013, 124, 5; 781-784
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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