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Photorefractive polymer composites based on ruthenium (II) tetra-15-crown-5-phthalocyanate axially coordinating ethylisonicotinate molecules photosensitive in telecommunication rangeстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 декабря 2017 г.
- Авторы: Grishina A.D., Gorbunova Yu G., Pereshivko L.Ya, Nekrasov A.A., Enakieva Yu Yu, Krivenko T.V., Savel'ev V.V., Vannikov A.V., Tsivadze A.Yu
- Журнал: Protection of Metals and Physical Chemistry of Surfaces
- Том: 45
- Номер: 5
- Год издания: 2009
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 535
- Последняя страница: 542
- DOI: 10.1134/S2070205109050062
- Аннотация: Polyvinylcarbazole layers containing ruthenium (II) tetra-15-crown-5-phthalocyanate axially coordinating ethylisonicotinate molecules are found to have photoelectric and photorefractive sensitivity at 1550 nm. The effect is determined by the formation of supramolecular ensembles with the electronic optical absorption and photoelectric sensitivity in the near IR range up to 1600 or 1700 nm and nonlinear optical properties. A photorefractive two-beam coupling gain coefficient I" measured at 1550 nm increases with an increase in the Ru(II) complex content in the polymer layer and equals 25 cm(-1) at 6 wt %. The difference between the coupling gain and absorption coefficients (the actual gain coefficient) is I" - alpha = 19 cm(-1). Additionally introducing 3 wt % C-60 fullerene into the layer does not change the characteristics, but the subsequent preirradiation (irradiation of the whole layer with a 633-nm laser beam in a range of the optical absorption of C-60 before recording photorefractive curves) results in an increase in the gain coefficient at 1550 nm up to I" = 48.3 cm(-1) and, hence, in I" - alpha = 42.3 cm(-1). A time constant of the diffraction grating formation is about tau = 0.8 s.
- Добавил в систему: Енакиева Юлия Юрьевна