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Information × Registration Number 0217U004828, 0112U002608 , R & D reports Title The study of quantum and coherent optical processes under the influence of laser radiation with controlled spectral and temporal characteristics on atoms, molecules, nano-and microsystems. popup.stage_title Head Yatsenko L.P., Registration Date 07-03-2017 Organization Institute of physics NASU popup.description2 The object of study - atoms, molecules and nanoparticles in a light field; phase holographic gratings, original holographic material for their production, metal-graphene nanostructures. Purpose - to study the possibility of forming one-dimensional structures of atoms and molecules in the stochastic field of oncoming waves. Investigation of nonlinear optical properties of metallorganic nanocomposites. Study of the effects of amplification (SERS and SEIRA) for various metal-graphene structures. Research methods - Analysis of resonant interaction of laser radiation with atoms and molecules by modeling of the wave function by Monte-Carlo method. Description of mechanical motion of atoms and molecules with equations of Newton. Application of Monte-Carlo method to calculate the statistical characteristics of the ensemble of particles. Methods of spectroscopy and holography. Experimental methods with using of existing and new instruments and methods of laser physics, optics and holography, theoretical and computational research methods based on coupled waves by using of applied mathematical program. IR spectroscopy, Raman spectroscopy, optical spectroscopy, SEM microscopy. Results - it has been accomplished the analysis of two-photon optical transitions in the nucleus 229Th and it has been shown promise of this method for nucleus excitation. It has been desighned the method of getting excited isomer state of 229Th based on two-photon absorption for use as a frequency standard. It has been proposed the method of localization of cooling atoms by counter-propagating light waves. It has been designed the theory for creating of optical traps based on the adiabatic interaction between atoms and counter-propagating sequences of pulses with large area. It has been designed the modern systems for ranging based on frequency-shifted feedback lasers with the injection phase-modulated single-frequency radiation onto the cavity for high-speed distance measuring with micron accuracy. It has been developed the approximate theory of diffraction and amplification of the light wave in the reflecting lattice under the Bragg condition of second order. It has been obtained the analytical expressions of the coefficients of reflection and transmission, of generation wavelength and free spectral range. It has been designed and investigated two types of lasers with distributed feedback based on polymer lattices polymer - nanoparticle: a) lasers with an activated by laser dye Bragg structure and b) fiber lasers with activated planar fiber and the external Bragg resonator for providing of feedback. It has been investigated spectral-temporal dynamics unsteady plasmon absorption of polymer nanocomposites with chaotic and orderly distribution of silver nanoparticles formed in a polymer matrix from metal precursor. It has been developed and experimentally studied the method of pattern recognition by replacing the objects on uniquely associated synthesized phase objects, calculated using the IFS algorithm. Product Description popup.authors Єжов Павло Валентинович Войцехович Валерій Степанович Гринь Володимир Олександрович Качалова Наталія Михайлівна Кохтич Людмила Миколаївна Литвинов Олексій Миколайович Лямець Олександр Костянтинович Мамута Олександр Дмитрович Романенко Віктор Іванович Смірнова Тетяна Миколаївна Тихонов Євген Олександрович Ходаковський Володимир Михайлович Ходько Аліна Андріївна Хоменко Вадим Володимирович Яценко Леонід Петрович popup.nrat_date 2020-04-02 Close