Autor: Nawrocki, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Type I CdSe and CdMgSe Quantum Wells
Autorzy:: Rudniewski, R.
Rousset, J.
Janik, E.
Kossacki, P.
Golnik, A.
Nawrocki, M.
Pacuski, W.
Powiązania:: https://bibliotekanauki.pl/articles/1376087.pdf
Data publikacji:: 2014-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.-e
81.05.Dz
81.07.-b
Opis:: In this work we present the band gap engineering, epitaxial growth and optical characterization of CdSe/$Cd_{0.9}Mg_{0.1}Se$ and $Cd_{0.9}Mg_{0.1}Se$/$Cd_{0.85}Mg_{0.15}Se$ quantum wells with a thickness ranging from 1 to 15 nm. These structures exhibit strong near-band-gap photoluminescence from helium up to room temperature. The emission energy is tuned in the range from 1.74 to 2.1 eV at 7 K, depending on the thickness and well composition. The most intense photoluminescence (both at 7 and 300 K) was observed for 10 nm thick CdSe/$Cd_{0.9}Mg_{0.1}Se$ wells. Such a structure gives also a sharp emission line (FWHM = 20 meV) at low temperature. The presented quantum wells are well suited for being embedded in lattice matched ZnTe based microcavities.
Źródło:: Acta Physica Polonica A; 2014, 126, 5; 1167-1170
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: MBE Growth and Characterization of a III-V Distributed Bragg Reflectors and InAs Quantum Dots
Autorzy:: Rousset, J.
Słupinski, T.
Jakubczyk, T.
Kobak, J.
Stawicki, P.
Gołasa, K.
Babinski, A.
Nawrocki, M.
Pacuski, W.
Powiązania:: https://bibliotekanauki.pl/articles/1403611.pdf
Data publikacji:: 2012-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.20.Ci
78.67.Pt
68.37.Hk
Opis:: We describe the realization and characterization of a distributed Bragg reflectors and InAs quantum dots grown by molecular beam epitaxy. The distributed Bragg reflectors are based on a stack of eight or twenty pairs of GaAs and AlAs layers with a stopband centered at about E_0=1.24 eV (λ_0=1000 nm). The whole structures exhibit a reflectivity coefficient above 90%. The growth rate was monitored in situ by measurement of the oscillations of the thermal emission intensity. The investigations conducted on the InAs quantum dots grown on GaAs show photoluminescence around E=1.25 eV (λ=990 nm). The combination of these two elements results in the realization of a microcavity containing InAs quantum dots and surrounded by 20 pairs of distributed Bragg reflectors.
Źródło:: Acta Physica Polonica A; 2012, 122, 6; 984-987
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Magnetooptical Properties of (Ga,Fe)N Layers
Autorzy:: Papierska, J.
Rousset, J.
Pacuski, W.
Kossacki, P.
Golnik, A.
Nawrocki, M.
Gaj, J.
Suffczyński, J.
Kowalik, I.
Stefanowicz, W.
Sawicki, M.
Dietl, T.
Navarro-Quezada, A.
Faina, B.
Li, T.
Bonanni, A.
Powiązania:: https://bibliotekanauki.pl/articles/1492954.pdf
Data publikacji:: 2011-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Pp
75.30.Hx
78.20.Ls
71.35.Ji
Opis:: Magnetooptical properties of (Ga,Fe)N layers containing various concentrations of Fe-rich nanocrystals embedded in paramagnetic (Ga,Fe)N layers are reported. Previous studies of such samples demonstrated that magnetization consists of a paramagnetic contribution due to substitutional diluted Fe ions as well as of ferromagnetic and antiferromagnetic components originating from Fe-rich nanocrystals, whose relative abundance can be controlled by the growth conditions. The nanocrystals are found to broaden and to reduce the magnitude of the excitonic features. However, the ferromagnetic contribution, clearly seen in SQUID magnetometry, is not revealed by magnetic circular dichroism. Possible reasons for differences in magnetic response determined by magnetic circular dichroism and SQUID measurements are discussed.
Źródło:: Acta Physica Polonica A; 2011, 120, 5; 921-923
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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