Autor: Šević, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Application of Fourier-Pade Approximation in Analysis of Holographic Diffraction Gratings
Autorzy:: Sevic, D.
Savic-Sevic, S.
Pantelic, D.
Marinkovic, B.
Powiązania:: https://bibliotekanauki.pl/articles/1399165.pdf
Data publikacji:: 2013-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.30.Mv
02.30.Nw
42.40.Eq
Opis:: The diffraction gratings, fabricated in our laboratory, were presented and analyzed by atomic force microscopy in earlier publications. In this paper we apply the Fourier-Pade approximation on our data previously analyzed by fast Fourier transform, proving advantages of using the Fourier-Pade approximation for spectral analysis of structural properties of some optical materials.
Źródło:: Acta Physica Polonica A; 2013, 124, 4; 619-621
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of Fourier-Padé Approximation in Analysis οf Holographic Photonic Crystal Structures
Autorzy:: Sevic, D.
Savic-Sevic, S.
Pantelic, D.
Jelenkovic, B.
Marinkovic, B.
Powiązania:: https://bibliotekanauki.pl/articles/1795631.pdf
Data publikacji:: 2009-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.40.Eq
42.70.Qs
02.30.Nw
Opis:: In this paper a method based on the Fourier transform and Padé approximants is investigated for analysis of holographic photonic crystal structures fabricated in Laboratory for Photonics, Institute of Physics, Belgrade. Padé approximants are numerical tool that can be used to accelerate the convergence of a slowly converging sequence.
Źródło:: Acta Physica Polonica A; 2009, 116, 4; 647-648
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Measurement of Beet Root Extract Fluorescence Using TR-LIF Technique
Autorzy:: Rabasovic, M.
Sevic, D.
Terzic, M.
Savic-Sevic, S.
Muric, B.
Pantelic, D.
Marinkovic, B.
Powiązania:: https://bibliotekanauki.pl/articles/1791241.pdf
Data publikacji:: 2009-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.62.Be
32.50.+d
33.50.Dq
Opis:: Laser induced fluorescence is a powerful spectroscopic technique commonly used to study the structure and internal state distributions in molecules of biological interest. Betanin $(C_{24}H_{26}N_{2}O_{13})$ is a specific violet betacyanin and the most prominent pigment in the red beet root where it contributes to 75-95% of the total visible color. Our method of excitation of the beet root extract is based on the tunable (320 nm to 475 nm) Nd:YAG laser system. Fluorescence images of beet root extract excited at 320, 340, 360 and 400 nm were obtained. The fluorescence is observed in range from 580 nm to 660 nm. The influence of the solution concentrations on the fluorescence intensity is also analyzed.
Źródło:: Acta Physica Polonica A; 2009, 116, 4; 570-572
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Optical and Electron Spectrometry of Molecules of Biological Interest
Autorzy:: Marinković, B. P.
Milosavljević, A. R.
Maljković, J. B.
Šević, D.
Petruševski, B. A.
Pavlović, D.
Filipović, D. M.
Terzić, M.
Pejčev, V.
Powiązania:: https://bibliotekanauki.pl/articles/2047901.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 34.80.Gs
34.80.Bm
52.25.Os
Opis:: Optical absorption and emission spectroscopy together with low energy electron interaction (elastic scattering, excitation, ionization, resonances) with biologically relevant molecules (nitrogen, oxygen, water, alcohols, tetrahydrofuran, tetrahydrofurfuril alcohol, 3-hydroxytetrahydrofuran, pyrimidine, glycine, alanine) are studied in order to understand radiation damage and to investigate the presence of pollutants in the atmosphere. Versatile high resolution electron spectrometers are used in the present study of electron-molecule interactions. Energy loss spectra were recorded for these molecules in order to identify electronic transitions from ground state to both allowed and optically forbidden states. Optical emission spectra have been recorded from gas discharge processes by low resolution optical spectrometer (Ocean Optics 2000). Also, electronic spectra were compared with high resolution synchrotron photoabsorption spectra where these spectra had been available. Experimental methods of absorption-based laser spectroscopy were reviewed being of the most widely used analytical tools for detection of a specific molecule and quantitative measurements, based on the Beer-Lambert absorption law.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 1145-1150
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Influence of the Heat Treatment on the Band Gaps in the Biopolymer Photonic Crystals
Autorzy:: Savic-Sevic, S.
Pantelic, D.
Jelenkovic, B.
Powiązania:: https://bibliotekanauki.pl/articles/1795629.pdf
Data publikacji:: 2009-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.70.Qs
42.40.Pa
82.35.Pq
87.15.rp
Opis:: 1D photonic crystal was fabricated in a dichromate-sensitized biopolymer using holography method. The effects of the temperature of the photonic crystal layer on the center of photonic band gaps were studied. We showed that the central wavelength of the band gap can be tuned by heating the photonic crystal layer. By applying such heat treatment, tuning of the position of the band gap for about 80 nm was obtained.
Źródło:: Acta Physica Polonica A; 2009, 116, 4; 645-646
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Holographic Fabrication of Periodic Microstructures in Dichromated Pullulan
Autorzy:: Savić-Šević, S.
Pantelić, D.
Gajić, R.
Isić, G.
Powiązania:: https://bibliotekanauki.pl/articles/2047886.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.40.-i
42.70.Ln
42.70.Qs
Opis:: Photonic crystal structures are fabricated in dichromated pullulan by the holographic technique. Relief structures of photonic lattices with rectangular, rhombic, and hexagonal arrays of peaks and holes are obtained. The structures have periodicities of the order 1.1μm and depth of about 50 nm.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 1079-1082
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Holographic Measurement of Dental Tissue Contraction and Stress, due to Postpolymerization Reaction
Autorzy:: Pantelić, D.
Blažić, L.
Savić-Šević, S.
Murić, B.
Vasiljević, D.
Panić, B.
Belić, I.
Powiązania:: https://bibliotekanauki.pl/articles/2047904.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.40.Kw
87.85.G-
87.15.rp
87.10.Kn
Opis:: Polymerization contraction of dental photo-polymer composites induces internal stress, in a tooth cavity. This stress is measured indirectly by, first, holographic determination of tooth deformation, with consequent calculation of stress using finite element method. Real time holographic technique enabled observation of dental deformation in all stages of polymerization. Specially constructed blue-LED light source was used to polymerize photopolymer composite. We have found that polymerization continues even after illumination is over. Consequently, stress is increased, too.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 1157-1160
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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