National Budget/Anisotropy (from the Ministry of Education and Science of Ukraine)

Name

Innovative low-symmetric and nanostructured crystal materials with preset anisotropy for elements and devices of micro- and nanoelectronics

Project content

Task of project:

Experimental studies of proper and induced optical effects in low-symmetric solid and liquid crystal materials and filled nanoporous structures are aimed to solve an important scientific and technical problem of materials science and nanophysics, namely: increasing the efficiency of the structures as promising working elements of electro-, piezo or acousto-optical devices for infocommunication, including defense systems, as well as optoelectronic sensor elements of micro- and nanoelectronics.

Object and subject of research:

The object of research of this work is innovative low-symmetric solid and liquid crystal materials and filled nanoporous structures. The subject of this work is the proper and induced (electro-, piezo- or acousto-) optical effects in the corresponding materials and fabricated nanocrystal structures with a preset anisotropy.

The purpose and main objectives of the study:

The main goal of the project is to develop scientific and technological principles for simulation, creation and research of innovative low-symmetric and nanostructured crystal materials with a defined crystallization geometry (i.e. with a preset anisotropy) of the given material and to evaluate the prospects of their applications in various optoelectronic devices. This involves the use of a large undiscovered resource of spatial anisotropy of induced optical properties of the material. The main objectives of the project were: 1) conducting of the necessary experimental studies of induced (electro-, piezo- or acousto-) optical parameters for the selected promising crystal material; 2) application of the developed technology for the most efficient use of anisotropic material to find the appropriate extreme geometry of the studied effect in the material; 3) on this basis developing of the technology of creating nanostructures with a preset anisotropy, using nanoporous matrices from alumina and 4) conducting of proper and induced optical studies of created nanostructures filled with solid material in the extreme geometry of the induced optical effect and analyzing of a practical use of the creative nanostructures.

The main results

1. The information technology of the most efficient and stable use of anisotropic materials created by the authors was improved and its approbation was carried out on the example of crystals of group Ba(NO3)2, KDP and other low-symmetric crystalline materials.
2. The software for 3D analysis of spatial anisotropy and search of extreme value of induced optical effects were improved and its approbation was carried out on the examples of investigated crystals.
3. The methods previously developed by the authors were used to determine the non-zero components of tensors of electro- and piezo-optical effects and the parameter of acousto-optical quality in crystals of different classes of symmetry; For the first time, methodological support was created for experimental measurements of nanostructures with a preset anisotropy.
4. Nanocrystal structures were created by filling the pores of nanoporous matrices with water-soluble crystal materials.

Originality and innovative aspects

• The experimental setups and corresponding methods for measurements of electro-, piezo- and elasto-optical effects in bulk crystalline materials of all symmetry classes are modernized. The created nanostructures with the preset anisotropy were investigated also. For the first time, a complete study of all the necessary parameters of selected anisotropic materials was conducted, i.e. the components of electro-, piezo- or elasto-optical tensors for selected bulk crystal materials were measured. The presented and modernized techniques are suitable for crystal materials of all classes of symmetry and permit to determine both the magnitude and sign of all electro-, piezo- or elasto-optical coefficients, in contrast to other known techniques, where the signs of these coefficients are not determined.
• The software for 3D analysis of the spatial anisotropy of induced optical effects and determination of their global maxima in low-symmetric bulk and nanostructured crystal materials were improved. It allows taking into account the inverse piezoelectric effect acting at the electro-optical interaction, as well as the momentum conservation law in acoustoptic interactions. The inverse piezoelectric effect was not taken into account at mentioned cases before.
• For the first time, the extreme surfaces of induced optical effects were constructed and optimal geometries of electro-, piezo- and acousto-optical interactions for selected materials were found. At the same time, upgraded software was used. The more accurate results were obtained. Prospects for significant improvement of the characteristics of crystal materials as active elements of optoelectronic devices were substantiated.
• The efficiency of nanomaterial engineering was demonstrated and the available technologies for controlling the growth of nanostructures with a given anisotropy were adapted. Based on the developed technologies for filling mesopores of nanoporous membranes, the technology was developed and the creation of nanoporous structures with a given anisotropy was experimentally confirmed that is also the novelty of this project. For the first time, experimental data for induced optical effects in individual nanostructures of different geometries were interpreted and theoretically analyzed in order to find crystallographic orientations with the highest magnitude of these effects.

According to the project materials the oral and poster presentations were made at international conferences:

• Andrushchak A. Spatial anisotropy of induced optical effects in anisotropic materials for optoelectronic devices: hidden reserves for enhancing their performаnce // Modern Problems of Radio Engineering, Telecommunications and Computer Science - Proceedings of the 13th International Conference, TCSET'2016, February 23 – 26, 2016, Lviv-Slavsko (Ukraine). – P. 354–356. https://ieeexplore.ieee.org/document/7452057
• Buryy O., Andrushchak A., Rusek A., Ubizskii S. Most efficient geometries of the electro-optic effect in crystalline materials of different symmetry // Modern Problems of Radio Engineering, Telecommunications and Computer Science - Proceedings of the 13th International Conference, TCSET'2016, February 23 – 26, 2016, Lviv-Slavsko (Ukraine). – P. 379–383. https://ieeexplore.ieee.org/document/7452064
• Andrushchak A., Buryy O., Mytsyk B., Andrushchak N., Demyanyshyn N., Chaban K., Rusek A., Kityk A. Information Technology for Most Efficient Application of Bulk and Nаnocrystalline Materials as Sensitive Elements for Optoelectronic Devices // Modern Problems of Radio Engineering, Telecommunications and Computer Science - Proceedings of the 13th International Conference, TCSET'2016, February 23 – 26, 2016, Lviv-Slavsko (Ukraine). – P. 395–398. https://ieeexplore.ieee.org/document/7452068
• Andrushchak N.A., Kityk A.V., Andrushchak A.S. Perspective of Design of Crystalline Nanocomposites with Tailored Anisotropy as Active Elements in Optoelectronics, in Proceedings of International research and practice conference: Nanotechnology and Nanomaterials (NANO-2016), August 24-27, 2016, Lviv (Ukraine). – P. 24. http://www.iop.kiev.ua/~nano2016/abstracts/andrushchak.pdf
• Andrushchak A.S., Buryy O. A., Andrushchak N.A., Yaremko O.M., Rusek A., Kityk A.V. Global maxima of linear electro-optic effect for selected widely used crystalline materials, International Conference on Advanced Optoelectronics and Lasers (CAOL), 2016, Conference Proceedings, – September 12-15, 2016, Odesa (Ukraine). – P. 176-178. https://ieeexplore.ieee.org/document/7851417
• Buryy O., Andruschchak N., Demyanyshyn N., Andruschchak A., Mytsyk B. The Acousto-Optic Effect Maxima in SrB4O7 Crystals, 13th International Conference on Laser & Fiber-Optical Networks Modeling (LFNM), 2016, Conference Proceedings, – September 12-15, 2016, Odesa (Ukraine). – P. 65-66. https://ieeexplore.ieee.org/document/7851232
• Andrushchak N.A., Buryy O.A., Adamiv V.T., Teslyuk I.M., Andrushchak A.S., Kityk A.V. Development of Crystalline Nanocomposites with KDP crystals as Nanofiller, in Proceedings of the International Conference “Nanomaterials: Applications and Properties”. – September 14-19, 2016, Lviv (Ukraine). – Vol. 5, No.2, 02NNSA10 (3pp). https://ieeexplore.ieee.org/document/7757311
• Andrushchak N., Matviychuk Ya., Andrushchak A. Application of a Principle of Mathematical Models Reduction for Optimal Vector of Induced Optical Effects in Crystalline Materials for Optoelectronics, in Proceedings of 14th International Conference The Experience of Designing and Application of CAD Systems in Microelectronics (CADSM 2017), 21-25 February, 2017, Polyana-Svalyava (Zakarpattya), UKRAINE. – P. 70-73. https://ieeexplore.ieee.org/document/7916087
• Andrushchak N., Goering P., Andrushchak A. Nanoengineering of Anisotropic Materials for Creating the Active Optical Cells with Increased Energy Efficiency, 2018 14th International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer Engineering (TCSET’2018), February 20-24, Lviv-Slavske (Ukraine). – P. 484-487. https://ieeexplore.ieee.org/document/8336246

Publications

Within the project the scientific and technical papers were published:

1. Buryy O., Demyanyshyn N., Mytsyk B., Andrushchak A. Optimizing of the piezo-optic interaction geometry in SrB4O7 crystals // Optica Applicata.– 2016. –V. 46, No.3. – P. 447-459. http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.baztech-ae22113d-73c6-4177-bdf7-b8452f4027df
2. Buryy O., Andrushchak N., Ratych A., Demyanyshyn N., Mytsyk B., Andrushchak A. Global maxima for the acousto-optic effect in SrB4O7 crystals // Applied Optics.– 2017. –V. 56, No.7. – P.1839-1845. https://www.osapublishing.org/ao/abstract.cfm?uri=ao-56-7-1839
3. Andrushchak A., Buryy O., Andrushchak N., Hotra Z., Sushynskyi O., Singh G., Janyani V., Kityk I. General Method of Extreme Surfaces for Geometry Optimization of the Linear Electro-Optic Effect on Example of LiNbO3:MgO Crystal // Applied Optics.– 2017. –V. 56, No.22. – P. 6255-6262. https://www.osapublishing.org/ao/abstract.cfm?uri=ao-56-22-6255
4. Andrushchak A.S., Buryy O.A., Demyanyshyn N.M., Hotra Z.Yu., Mytsyk B.G. Global Maxima of the Acousto-Optic Effect in CaWO4 Crystals // Acta Physica Polonica A.– 2018. –V. 133, No. 4. – P.928-932. http://przyrbwn.icm.edu.pl/APP/PDF/133/app133z4p39.pdf
5. Andrushchak N., Kulyk B., Goring P., Andrushchak A., Sahraoui B. Study of Second Harmonic Generation in KDP/Al2O3 Crystalline Nanocomposite // Acta Physica Polonica A.– 2018. –V.133, No. 4. – P.856-859. http://przyrbwn.icm.edu.pl/APP/PDF/133/app133z4p22.pdf
6. Buryy О.А., Andrushchak N.A., Demyanyshyn N.M., Andrushchak А.S. Study of peculiarities of acousto-optical interaction optimization in optically isotropic crystalline material on the example of GaP cubic crystal // Applied Optics
7. Бурий О.А., Андрущак Н.А., Яремко О.М., Убізський С.Б. Оптимізація геометрії лінійного електрооптичного ефекту в кристалах LiNbO3:MgO // Вісник Національного університету „Львівська політехніка”, серія „Радіоелектроніка та телекомунікації”. – 2016. – № 849 – C. 285-291. http://ena.lp.edu.ua:8080/handle/ntb/36345
8. Дем’янишин Н.М., Андрущак А.С., Бурий О.А., Мицик Б.Г. Реалізація можливостей ефективнішого використання кристалічних матеріалів на основі нетривіальної кутової геометрії екстремумів п’єзооптичного ефекту // Вісник Національного університету „Львівська політехніка”, серія „Радіоелектроніка та телекомунікації”. – 2018. – № 909. – С. 70–78.
9. Андрущак А.С., Бурий О.А., Андрущак Н.А. Спосіб пошуку глобального максимуму електрооптичного ефекту в анізотропних матеріалах для виготовлення чутливого елемента електрооптичної комірки. Патент України на корисну модель №134377 від 10.05.2019, Бюл. №9, МПК G01N 21/41 (Заявка на корисну модель за №u 2018 12747 від 21.12.2018).

Monograph

1. Andrushchak А.S., Buryy О.А., Andrushchak N.A., Demyanyshyn N.M. The spatial anisotropy of induced optical effects in crystal materials. Vol.1. – Lviv: Space (Prostir)-M, 2019.-196 p.

The thesis for a degree

1. Demyanyshyn N.M. Photoelasticity of low-symmetric crystals. The thesis for the degree of doctor of science, specialty 01.04.05 – optics, laser physics. – Vlokh Institute of Physical Optics of Ministry of Education and Science of Ukraine, Lviv, 2018.

© Center of Excellence for Innovative Technologies and NanoEngineering

Address: Ukraine, Lviv, 5 Kn. Romana str., Office 620

Tel/Fax: +38(032)258-30-82, email: anatolii.s.andrushchak@lpnu.ua