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Information × Registration Number 0213U007727, 0111U006985 , R & D reports Title Optical and spectral properties of nanoscale monocrystalline ferroics under the influence of external fields popup.stage_title Head Stadnyk Vasyl Yosypovych, Registration Date 17-06-2013 Organization Ivan Franko National University of Lviv. Journalism Department popup.description2 Report on research: 39 p., 13 fig., 2 tables., 1 addition, 85 sources. Object of research: Monocrystalline nanoscale ferroics. Subject of research: electronic polarizability, piezooptic and electrode rooptychni coefficients, phase transitions. The purpose and main objectives of the study. The main goal of research was to establish the influence of impurities derived protein amino acids and uniaxial mechanical pressure on the refractive indices, birefringence, the position of points of phase transitions and electro piezooptic constants dielectric crystal TGS. The paper investigated the influence of impurities on the temperature and spectral dependences of the refractive indices and birefringence of crystals TGS, the impact of uniaxial mechanical pressure on the temperature and spectral dependences of birefringence those doped TGS crystals. The analysis of the impact of substitution and uniaxial mechanical pressure and temperature-dependence for the dispersion of the refractive indices, the calculation of the parameters of the effective UV and IR oscillators, electronic polarizability and refraction. The influence of home-shock and uniaxial strain on the shift of ferroelectric phase transition cult TGS crystals and spectral and temperature changes piezooptic coefficients in the neighborhood of impurity crystals AF. Research method - Immersion and photographic techniques Obreyimova for refractive indices, interference method and Senarmona for you-meaning birefringence, polarization-optical method, method of universal null-polarimeter methodologies to study the dielectric properties and thermal expansion. Used interference method studies in polarized light and method Obreyimova. The parameters of the optical indicatrix, calculated latent parameters of effective oscillators, optical constants and their baric sensitivity. Revealed changes associated with the structure of crystals, proposed use of the work in measuring equipment, including in thermometry. Product Description popup.authors Бовгира Олег Вікторович Капустяник В.Б. Стадник В.Й. popup.nrat_date 2020-04-02 Close