Source: http://re-journal.org.ua/en/archive/2016/2/07
Timestamp: 2019-04-24 20:45:19+00:00

Document:
Recently the trend connected with creation of new effective laser media representing the composites made of dye molecules and nanostructures of noble metals has been developing very rapidly. It is known that adding the nanoparticles of metals in the active media can be used for improving the media emission characteristics. Thus, for realization of this possibility it is necessary to research the nature of component interaction for each specific combination. In this work, the dependence of fluorescence intensity of Rhodamine 6G and Sulforhodamine 101 liquid solutions on concentration of silver nanoparticles with a radius ~ (32 ± 5) nm is investigated with a different frequency of exciting radiation. It was determined that the increase of the nanocomponent concentration increases fluorescence intensity of both dyes. It is shown that the fluorescence intensity increases when the wavelength of exciting radiation approaches the maximum of nanoparticles plasmon resonance range. Basing on the received dependences, the conclusion is drawn on existence of nanocomponent optimum concentration, the exceeding of which will lead to suppression of fluorescence due to the increase of probability of nonradiative deactivation of molecules excited states.
Klimov, V. V., 2009. Nanoplasmonics. Moscow: Fizmatlit Publ. (in Russian).
Novotny, L. and Hecht, B., 2009. Principles of nano optics. Translated from English by A. A. Konovko, O. A. Shutova. Moscow: Fizmatlit Publ. (in Russian).
Klimov, V. V., Ducloy, М. and Letokhov, V. S., 2001. Spontaneous atomic radiation in the presence of nanobodies. Kvantovaya elektronika, 31(7), pp. 569–586 (in Russian).
Iosin, M., Baldeck, P. and Astilean, S., 2009. Plasmon-enhanced fluorescence of dye molecules. Nucl. Instrum. Methods Phys. Res., Sect. B, 267(2), pp. 403–405.
Suvorova, T. I., Balbekova, A. N., Klyuev, V. G., Latyshev, A. N., Ovchinnikov, O. V., Smirnov, M. S., Rybalko, A. M., 2012. Enhancement of luminescence of the dye molecules in the presence of silver nanoparticles. Opticheskii Zh., 79(1), pp. 79–82.
RagabAlaa El–din, E. A., Gadallah, A., Mohamed Mona, B. and Azzouz, I. M., 2013. Effect of silver NPs plasmon on optical properties of fluorescein dye. Opt. Laser Technol., 52(11), pp. 109–112.
Donchenko, V. A., Edreev, I. A., Zemlyanov, Al. A., Trifonova, A. V., Kharenkov, V. A., 2008. A decrease in the superluminescence threshold of composited of an organic dye with nanoparticles. Izv. Vyssh. Ucheb. Zaved. Fiz., 9, pp. 77–82 (in Russian).
Kharenkov, V. А., Donchenko, V. А. and Zemlyanov, А. А., 2012. Influence of agglomerated nanoparticles on lasing efficiency. Izv. Vyssh. Ucheb. Zaved. Fiz., 2, pp. 244–246 (in Russian).
Ibraev, N. Kh., Zeynidenov, А. K. and Аymukhanov, А. K., 2014. The influence of silver nanoparticles on stimulated luminescence of Rhodamine 6G solutions. Optika i spektroskopiya. 117(4), pp. 559–563 (in Russian).
Anger, P., Bharadwaj, P. and Novotny, L., 2006. Enhancement and quenching of single–molecule fluorescence. Phys. Rev. Lett. 96(11), pp. 113002 (4 p.).
Santhi, A., Umadevi, M., Ramakrishnan, V., Radhakrishnan, P., Nampoori, V. P. N., 2004. Effect of silver nano particles on the fluorescence quantum yield of Rhodamine 6G determined using dual beam thermal lens method. Spectrochim. Acta, Part B, 60, pp. 1077–1083.
Kucherenko, М. G. and Rusinov, А. P., 2015. The influence of metal nanoparticles on the deactivation processes of the electronically excited state of the molecule. In: Proc. of the All-Russian Scientific Conf. «University complex as a regional center of education, science and culture». Orenburg, OSU, pp. 1091–1096 (in Russian).
Andreev, А. N. and Lazarenko, А. G., 2013. Measurements of particle dimensions in colloidal solutions using the correlation spectroscopy technique. Radiotekhnika. 175, pp. 229–233 (in Russian).
Кlochkov, V. К., Grigorova, А. V., Sedykh, О. О. and Yefimova, S. L., 2014. The aggregation of the methylene blue and the Nile blue in the presence of the ReEuVO4 (Re = Gd, Y, La) nanoparticles with different form-factor. Voprosy Khimii i Khimicheskoi Tekhnologii., 1, pp. 102–109 (in Russian).

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