Autor: Harun, Harun - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical Transition, Excitation, and Emission Properties of Poly(N-Vinlycarbazole) Blended with Poly(Vinylidene Fluoride-co-Hexafluoropropene) and Polyvinylpyrrolidone
Autorzy:: Alias, A.
Zabidi, Z.
Harun, M.
Yahya, M.
Ali, A.
Powiązania:: https://bibliotekanauki.pl/articles/1401283.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.60.-j
31.15.bu
81.05.Lg
82.35.Lr
Opis:: We present the results concerning the excitation and emissions spectra of poly(N-carbazole) (PVK) blended with poly(vinylidene fluoride-co-hexafluoropropene), (PVDF-HfP) and polyvinylpyrrolidone (PVP). Thin films of PVK blended with PVDF-HfP (PVK:PVDF-HfP) and PVP (PVK:PVP) were prepared using doctor blade technique on spectrosil substrate. The influences of polymer blends to the excitation and emission spectra were observed under UV excitation source of a xenon lamp. The result shows a discrepancy in the maximum excitation and emission for each samples. The possible energy transfer and recombination mechanisms have been related with singlet-singlet semi-empirical INDO electronic calculation and FTIR measurements.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1075-1078
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Optical Transition, Excitation, and Emission Properties of Poly(N-Vinlycarbazole) Blended with Poly(Vinylidene Fluoride-co-Hexafluoropropene) and Polyvinylpyrrolidone
Autorzy:: Alias, A.
Zabidi, Z.
Harun, M.
Yahya, M.
Ali, A.
Powiązania:: https://bibliotekanauki.pl/articles/1401439.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.60.-j
31.15.bu
81.05.Lg
82.35.Lr
Opis:: We present the results concerning the excitation and emissions spectra of Poly (N-carbazole) (PVK) blended with poly(vinylidene fluoride-co-hexafluoropropene), (PVDF-HfP) and polyvinylpyrrolidone (PVP). Thin films of PVK blended with PVDF-HfP (PVK:PVDF-HfP) and PVP (PVK:PVP) were prepared using doctor blade technique on spectrosil substrate. The influences of polymer blends on the excitation and emission spectra were observed under UV excitation source of a xenon lamp. The result shows a discrepancy in the maximum excitation and emission for each sample. The possible energy transfer and recombination mechanisms have been related with singlet-singlet semi-empirical INDO electronic calculation and FTIR measurements.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1430-1433
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Highly efficient cladding pumped dual-wavelength thulium ytterbium co-doped fiber laser
Autorzy:: Latiff, A.A.
Babar, I.
Shamsudin, H.
Paul, M.
Halder, A.
Das, S.
Bhadra, S.
Ahmad, H.
Harun, S.
Powiązania:: https://bibliotekanauki.pl/articles/1058544.pdf
Data publikacji:: 2016-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.55.Wd
42.60.Fc
42.70.-a
Opis:: This paper describes the all-fiber dual-wavelength thulium ytterbium co-doped fiber laser by using a newly developed octagonal shaped double-clad thulium-ytterbium co-doped fiber as gain medium in conjunction with spatial filtering effect. The thulium ytterbium co-doped fiber laser operates at wavelengths of 1990.64 nm and 1998.92 nm with a signal to noise ratio of more than 34 dB as the 980 nm multimode pump power is increased above a threshold value of 1.5 W. The slope efficiency of the dual-wavelength laser is measured to be around 26.16%, which is comparable with the conventional thulium laser pumped by 800 nm single mode pump.
Źródło:: Acta Physica Polonica A; 2016, 130, 6; 1332-1335
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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