Autor: Kononenko, S. I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical gain in one-dimensional photonic band gap structures with n-i-p-i crystal layers
Autorzy:: Nefedov, I.S.
Gusyatnikov, V.N.
Marciniak, M.
Kononenko, V.K.
Ushakov, D.V.
Powiązania:: https://bibliotekanauki.pl/articles/308163.pdf
Data publikacji:: 2002
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: photonic crystals
doping superlattice
optical gain
tunable source
Opis:: The gain enhancement in a layered periodic photonic band gap structure containing active medium based on GaAs n-i-p-i superlattices separated by A1GaAs layers is analyzed. The dependences of extinction coefficient and refractive index on excitation level and wavelength are presented. Transmission characteristics of a probe light versus excitation level are calculated. It is shown that the threshold of generation can be essentially reduced if the wavelength of probe light falls to the band gap edge.
Źródło:: Journal of Telecommunications and Information Technology; 2002, 1; 60-64
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Change of silica luminescence due to fast hydrogen ion bombardment
Autorzy:: Zhurenko, V. P.
Kalantaryan, O. V.
Kononenko, S. I.
Powiązania:: https://bibliotekanauki.pl/articles/146688.pdf
Data publikacji:: 2015
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: luminescent spectrum
absorption dose
ion implantation
silica
Opis:: This paper deals with the luminescence of silica (KV-type) induced by beam of hydrogen ions with the energy of 210 keV per nucleon. An average implantation dose of up to 3.5 × 1021 cm–3 (5 × 1010 Gy) was accumulated during irradiation over an extended period. The luminescent spectra consisted of the blue band (maximum at 456 nm) and the red band (650 nm) in the visible range. It was shown that increase in the absorption dose had an effect on the silica luminescence. It was found that the most significant changes in the spectrum occurred during the dose accumulation in the region of 550–700 nm. The shape of the spectrum of the luminescent radiation in this wavelength range was affected both by the oxygen deficient centres (blue band) and non-bridging oxygen hole centers (red band). Mathematical processing of the experimental spectra permitted to identify contributions to the luminescent radiation coming from both types of defects.
Źródło:: Nukleonika; 2015, 60, 2; 289-292
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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