Registration Number
0223U002220,
0120U102204
, R & D reports
Title
Creating the innovative product for the most efficient and energy-efficient use of anisotropic and nanostructured materials in devices of electro-, acousto- and nonlinear optics
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Head
Zachek Ihor R., Доктор фізико-математичних наук
Registration Date
13-02-2023
Organization
Lviv Polytechnic National University
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A number of installations for performing experimental studies of electro-, piezo-, and acousto-optical effects, nonlinear optical measurements were implemented on the basis of the laboratories of Lviv Polytechnic University, the components of the tensors of the specified effects were determined for a number of crystals (CTGS, LiTaO3, LiNbO3:MgO), the characteristics of several nanostructured materials were investigated; the most effective geometries of induced optical effects in KDP, KD*P, ADP, AD*P, BaTiO3, LiIO3, LiTaO3, alpha-HIO3, KTP, KNbO3, etc. crystals were determined on the basis of indicative and extreme surfaces; appropriate sections of crystals were found for their use as working elements in electro-, piezo-, acousto- or nonlinear optical devices and as fillers for the production of nanostructured materials; the correctness of the concept of construction of piezo-optical effect indicating surfaces was experimentally proven, for which ten samples of X/θ sections from the LiNbO3:MgO crystal with angles θ = 0, ± 25, ± 37.5, ± 65 , ± 77.5 and 90 were made; an analytical description of this effect was carried out on the specified samples and working ratios were obtained for calculating the magnitude of the effect based on experimental data; sensitive elements of photoelastic, electro- and acousto-optic cells of optimized geometry were manufactured from selected materials, their high piezo-, electro- and acousto-optic efficiency was experimentally confirmed; for the first time, all ratios for determining all tensor components of elasto-optical coefficients by the Dixon-Cohen method in crystals of symmetry class 3m were recorded and, based on them, the matrix of these coefficients for lithium niobate crystals was filled; optimal conditions for nonlinear optical application of selected anisotropic and nanostructured materials were found; the electrical impedance of some structures based on the Al2O3 mesoporous matrix was studied and it was shown that the
Product Description
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Andrushchak Anatolii
Balaban Oksana
Buryi Oleh
Venhryn Bohdan
Danylov Andrii
Demianyshyn Nataliia
Martyniuk-Lototska Iryna
Mytsyk Bohdan
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2023-02-13
