Autor: Narkowicz, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: In-Plane Propagating Coupled Photon-Phonon-Magnetoplasmons, their Field Structure and Dispersion in GaAs/AlAs Superlattices
Autorzy:: Brazis, R.
Narkowicz, R.
Safonova, L.
Powiązania:: https://bibliotekanauki.pl/articles/1933727.pdf
Data publikacji:: 1995-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
Opis:: The dispersion and field structure of in-plane propagating p-polarized waves in n-GaAs/AlAs superlattice is studied in the frequency range below 10 THz in the presence of the steady magnetic field which is perpendicular both to the direction of propagation and periodicity. The existence of non-localized photon-phonon-plasmon modes as well as the magnetic-field-controlled mode localization at selected set of interfaces is predicted.
Źródło:: Acta Physica Polonica A; 1995, 88, 4; 687-690
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Transmission and Reflection of Millimeter Waves in i-GaAs/n-GaAs Periodic Structures in Voigt Configuration
Autorzy:: Narkowicz, R.
Brazis, R.
Safonova, L.
Powiązania:: https://bibliotekanauki.pl/articles/1968407.pdf
Data publikacji:: 1997-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
Opis:: The paper presents the first experimental results on the in-plane propagation of millimeter waves in GaAs ...n-i-n-i-... type periodic layered structures in the Voigt geometry. The data are found to agree with theoretical calculations based on the effective medium approximation, showing the feasibility of contactless non-destructive probing of periodic layered structures.
Źródło:: Acta Physica Polonica A; 1997, 92, 5; 929-934
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Interface, Guided and Non-Localized Modes in Superlattices
Autorzy:: Brazis, R.
Narkowicz, R.
Safonova, L.
Powiązania:: https://bibliotekanauki.pl/articles/1872587.pdf
Data publikacji:: 1995-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
Opis:: The numerical dispersion calculations in long-period GaAs/AlAs super-lattice were performed using a local theory with retardation as well as an effective medium approximation. The splitting of the dispersion branches near the transverse optical phonon frequencies and phonon-like to photon-like modes transition were found to depend on the superlattice spatial period. The characteristic frequencies of bulk modes and crossing point of dispersion branches estimated analytically with the use of an effective medium approximation were found to agree with the results of rigorous solution.
Źródło:: Acta Physica Polonica A; 1995, 87, 2; 333-336
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Optical Properties of Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te Crystals near Fundamental Absorption Edge in Transverse Magnetic Fields
Autorzy:: Safonova, L.
Brazis, R.
Narkowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/2041745.pdf
Data publikacji:: 2005-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Pp
78.20.Ci
78.20.Ls
Opis:: A simple and convenient model is proposed to elucidate the optical characteristics of Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te crystals using experimental data on light reflection in magnetic field. The model is based on the quasi-oscillator concept accounting both for the exciton and fundamental absorption edge contributions. The energy dependencies of refraction index and absorption coefficient are presented for Mn mole fraction x=20% at the magnetic field values up to 5 T.
Źródło:: Acta Physica Polonica A; 2005, 107, 2; 267-270
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Third-Order Susceptibility of Silicon Crystals Measured with Millimeter-Wave Gyrotron
Autorzy:: Narkowicz, R.
Siegrist, M.
Moreau, Ph.
Hogge, J.
Raguotis, R.
Brazis, R.
Powiązania:: https://bibliotekanauki.pl/articles/1505226.pdf
Data publikacji:: 2011-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Ky
72.20.Ht
Opis:: We investigate experimental dependence of the third harmonic generation efficiency in the n-type Si crystals on the geometrical dimensions of the sample, polarization and power of the fundamental wave. The efficiency increases monotonically with the rise of the sample thickness up to a threshold value, and decreases dramatically above the threshold. At shorter propagation distances the generation efficiency could be correctly simulated using the layered medium approximation and the numerically calculated electron drift velocity response to the pumping wave electric field to describe the change of the semiconductor properties under high-power microwave irradiation.
Źródło:: Acta Physica Polonica A; 2011, 119, 4; 509-513
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Exciton Properties in CdTe/CdMnTe Quantum Well Structures with Strong Localization Effects
Autorzy:: Godlewski, M.
Narkowicz, R.
Wojtowicz, T.
Karczewski, G.
Kossut, J.
Bergman, J. P.
Monemar, B.
Powiązania:: https://bibliotekanauki.pl/articles/1969075.pdf
Data publikacji:: 1998-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.35.-y
71.55.Jv
73.20.Mf
Opis:: Strong localization effects present in quantum well structures of CdTe/ CdMnTe noticeably affect exciton dynamics and strength and character of exciton-phonon interaction. We show that the temperature dependences of the PL linewidth, PL peak wavelength and PL decay time strongly deviate from those expected for Wannier-excitons in structures with atomically smooth interfaces.
Źródło:: Acta Physica Polonica A; 1998, 94, 2; 317-320
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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