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Information × Registration Number 0212U005796, 0112U004445 , R & D reports Title Ultrafast electronic processes and nonlinear optical effects in photopolymer composites with metal nanoparticles and periodic structures on their basis. popup.stage_title Head Smirnova Tatiana Nikolaevna, Доктор фізико-математичних наук Registration Date 28-12-2012 Organization Institute of physics NASU popup.description2 Polymer nanocomposites with noble metal nanoparticles (NP) are of great scientific interest as they possess particular optical and electronic properties and are perspective for creation of novel materials for photonics and optoelectronics. Holographic ordering of such nanocomposites allows creation of photonic crystals of different dimensionality (1D, 2D, 3D) that combine diffraction properties with particular properties of NP. In the case of metallic NC properties of nanocomposites and periodic structures on their basics are mainly determined by excitation of local surface plasmons and local field enhancement that leads to the increase of nonlinear medium response, rise in luminescence intensity, lasing in scattering media and to significant lowering of lasing threshold and increase of efficiency of lasers with photonic crystal cavities. The aim of the project is investigation of ultrafast spectral-temporal dynamics of nonstationary absorption and transformation of plasmonic resonance in polymer nanocomposites with chaotic and ordered distribution of metallic NP (Ag, Au), influence of size, conditions of NP synthesis and formation of polymer matrix on the mentioned processes. The investigations are aimed at optimization of amplitude and spectral characteristics of nonlinear-optical response of plasmonic 1D, 2D nanostructures for their potential use as light-controlled diffractive elements, fully-optical fast modulators and external resonators of lasers with distributed feedback. Product Description popup.authors Єжов Павло Валентинович Кохтич Людмила Михайлівна Смірнова Тетяна Миколаївна popup.nrat_date 2020-04-02 Close