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Information × Registration Number 0216U005853, 0115U004249 , R & D reports Title Atomic, molecular and nanoscale structures in gradient laser fields: mechanisms of formation, optical and laser properties, application in spectroscopy, laser technology and sensorics. popup.stage_title Head Yatsenko Leonid Petrovich, Registration Date 29-02-2016 Organization Institute of physics NASU popup.description2 The object of study - atoms, molecules and solids in the light field; structures with periodic modulation of refractive index. Purpose - theoretically prove the possibility of forming one-dimensional structures of atoms and molecules in the field of two bichromatic collinear standing waves. To improve the holographic method of fabrication of 1D and 2D photonic crystals of different symmetry type on the nanocomposites containing nanoparticles of metals and metal oxides. To create a carbon-metal nanostructure and to study their optical properties. Research methods - the analysis of the processes of resonant interaction of laser radiation with atoms and molecules using modeling wave functions by Monte Carlo method. Description of mechanical motion of atoms and molecules using Newton's equations. Methods of holographic photo-polymerization and holographic lithography. The results -The possibility of creation of periodic structures of atoms and molecules in the field of two collinear standing bichromatic standing waves is theoretically proved. As it turns out, with proper choice of phases of these waves, they form a trap for atoms and molecules. Atoms and molecules in this trap, after cooling to a temperature close to the Doppler limit, oscillate at the loops of the standing waves with the transition from time to time from one antinode to another. Based on a spatial light modulator (SLM), a modified scheme of formation of the interference field at several (3, 4, 6) laser beams is developed, which allowed to simplify and make more flexible the operational method of holographic lithography. The use of SLM allows to obtain structures with the same symmetry, but different distribution. It is shown that it is possible to use complex graphene/Au for surface enhanced vibrational spectroscopy (SERS and SEIRA effects). Product Description popup.authors Єжов Павло Валентинович Бойко Олексій Валентинович Кавелін В.В. Лямец Олександр Костянтинович Мамута Олександр Дмитрович Романенко Віктор Іванович Смірнова Тетяна Миколаївна Удовицька Олена Григорівна Фесенко Олена Мар'янівна Ходаковський Володимир Михайлович Яценко Леонід Петрович popup.nrat_date 2020-04-02 Close