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Information × Registration Number 0225U002650, (0123U101695) , R & D reports Title Innovative high-performance bulk, film and nanocomposite materials for electro- and non-linear optical devices of micro- and nanoelectronics popup.stage_title Електро- та нелінійно-оптичні дослідження об’ємних та наноструктурованих матеріалів. Тестування впливу морфології матриць, матеріалів наповнення та умов синтезу на структуру, нелійно- та параметрично-оптичні властивості нанокомпозитних матеріалів. Реалізація дифракційно¬го ЕО ефекту, визначення керуючих напружень в різних порядках дифракції. Head Zachek Ihor R., Доктор фізико-математичних наук Registration Date 26-03-2025 Organization Lviv Polytechnic National University popup.description1 Search and creation of materials to ensure higher efficiency of electro-optical light beam control devices and non-linear optical devices due to the use of optimal spatial orientation of active device elements and/or technological approaches that will improve the properties of known active media (nanomatrices filled with crystalline material or liquid crystal with optimal (or close to it) spatial orientation of nanocrystallites); in addition, it is planned to prove the effectiveness of a new effect – the diffraction electro-optical one. popup.description2 Electro- and nonlinear optical measurements were carried out on samples of bulk and nanocomposite materials, according to the results of which: Optimized sections of crystalline samples of niobate and lithium tetraborate crystals, langasite for electro-optical applications were obtained, and the results of studies of diffraction EOE for langasite crystals were obtained. It was shown that the use of optimization methods and the advantages of diffraction EOE allows to increase the efficiency of sensitive electro-optical elements by 3-4 times. The structural, spectroscopic and nonlinear optical properties of iminopyridine complexes based on stilbene with zinc(II) and cuprum(I) cations and thin films of ZnO doped with Sn were studied. It was shown that the created new functional materials with adjustable properties are promising for nonlinear optical applications. Nanostructures of Bi3B5O12, KDP, ADP and KB5 crystals were obtained on nanomatrices of Al2O3 and SiO2. X-ray structural studies and SEM examination of the obtained samples were carried out using the proposed modified method. The formation of nanocrystalline structures and their filling of the pores of the used nanoscale matrices were confirmed. The generation of the second harmonic was confirmed on the Al2O3:KB5 and Al2O3:ADP samples when they were irradiated with a pulsed Nd:YAG laser with a radiation wavelength of 1064 nm. The anisotropy was studied and the maximum achievable efficiency of nonlinear optical processes of generation of the second harmonic, total and difference frequencies in biaxial orthorhombic nonlinear optical crystals KTP, KTA, KB5, KNbO3, LBO, CBO, LRB4 was determined. The directions of the wave vectors of the input and output beams that provide the maximum achievable efficiency values have been determined. It has been shown that in a significant number of cases, vector phase synchronism provides higher efficiency than scalar phase synchronism.   Product Description popup.authors Andrushchak Anatolii S. Andrushchak Oksana O. Baluk Vasyl I. Bendak Andrii V. Buryi Oleh A. Vistak Mariia V. Danylov Andrii B. Demianyshyn Nataliia M. Mytsyk Bohdan H. Rybytska Olha M. Senko Ihor M. popup.nrat_date 2025-03-26 Close