LIST OF PUBLICATIONS

Articles

  1. A. Andrushchak, O. Buryy, N. Andrushchak, Z. Hotra, O. Sushynskyi, G. Singh, V. Janyani, I. Kityk, "General method of extreme surfaces for geometry optimization of the linear electro-optic effect on an example of LiNbO3:MgO crystals," Appl. Opt., vol. 56, Issue. 22, pp. 6255-6262, 2017. (doi: https://doi.org/10.1364/AO.56.006255)
  2. O. Buryy, N. Andrushchak, A. Ratych, N. Demyanyshyn, B. Mytsyk, A. Andrushchak, "Global maxima for the acousto-optic effect in SrB4O7 crystals," Appl. Opt., vol. 56, Issue. 7, pp. 1839-1845, 2017. (doi: https://doi.org/10.1364/AO.56.001839)
  3. O.A. Buryy, N.A. Andrushchak, O.M. Yaremko, S.B. Ubizskii, “Optimization of the geometry of linear electrooptical effect in LiNbO3:MgO crystals,” Bulletin of the Lviv National Polytechnic University, series "Radioelektronics and telecommjunication," No. 849, pp. 285-291, 2016. (in Ukrainian)
  4. N.A. Andrushchak, I.D. Karbovnyk, K. Godziszewski, Ye. Yashchyshyn, M.V. Lobur, A.S. Andrushchak. "New Interference Technique for Determination of Low Loss Materials Permittivity in the Extremely High Frequency Range," IEEE Trans. Instrum. Meas., vol. 64, Issue. 11, pp. 3005-3012, 2015. (doi: http://dx.doi.org/10.1109/TIM.2015.2437631)
  5. N. Andrushchak, В. Vasylyshyn, V. Chornenkyy. "Comparative Analysis of Algorithms for Projected Laser Line Identification and Recognition for 3D Scanning Devices," Computer Aided Systems: Theory and Practice, Issue. 828, pp. 42-48, 2015.
  6. A.S. Andrushchak, Т.І. Voronyak, O.V. Yurkevych, N.A. Andrushchak, A.V. Kityk. "Interferometric technique for controlling wedge angle and surface flatness of optical slabs."  Optics & Lasers in Engineering, vol. 51, No.4, pp.342-347, 2013. (doi: http://dx.doi.org/10.1016/j.optlaseng.2012.12.006)
  7. N.A. Andrushchak, O.I. Syrotynsky, I.D. Karbovnyk, Ya.V. Bobitskii, A.S. Andrushchak, A.V. Kityk. "Interferometry technique for refractive index measurements at subcentimeter wavelengths." Microwave and Opt. Technol. Lett, vol. 53, pp. 1193–1196, 2011. (doi: http://dx.doi.org/10.1002/mop.25944)
  8. A.S. Andrushchak, O.V. Yurkevych, N.A. Andrushchak, O. Kushnir, A. Kityk. "The spatial anisotropy of photoelastic effect in quartz crystals." Electronics and Information Technology,  vol. 1, pp. 98-109, 2011. (in Ukrainian)
  9. N. Andrushchak, I. Karbovnyk, Ya. Bobitski, A. Andrushchak, O. Kushnir. "Improved measurements of refractive index by means of interferometric-turning technique." Electrical Engineering, vol. 61, pp. 120-127, 2010. (in Ukrainian)
  10. A.S. Andrushchak, E.M. Chernyhivsky, Z.Yu. Gotra, M.V. Kaidan, A.V. Kityk, N.A. Andrushchak, T.A. Maksymyuk, B.G. Mytsyk, W. Schranz. Spatial anisotropy of the acoustooptical efficiency in lithium niobate crystals." J. Appl. Phys, vol. 108, pp. 103118(1–5), 2010. (doi: http://dx.doi.org/10.1063/1.3510518)
  11. N.A. Andrushchak, O.I. Syrotynsky. "Interferometric setup for determining the refractive index of plane-parallel plates in the range of mm-submm wavelengths. Approbation on samples of optical glass, crystalline quartz, sapphire and eulitine." Bulletin of Lviv Polytechnic National University: Electronics, vol. 646, pp. 179-184, 2009. (in Ukrainian)
  12. N. A. Andrushchak, O.I. Syrotynsky. "Determination of the refractive index of plane-parallel plate by means of interferometric-turning method in the range of mm-submm waves." Modeling and Information Technologies, vol. 42, pp. 97-102, 2007. (in Ukrainian)

 

Patents

  1. N.A. Andrushchak "Dynamic device". Ukraine, Patent #94390, Nov 10, 2014.
  2. Ye.M. Yaschyshyn, N.A. Andrushchak, K. Godziszewski, O.S. Kushnir, A.S. Andrushchak. "Vector analyzer interferometric device for measuring the dielectric permittivity of materials." Ukraine, Patent #93863, Oct 27, 2014.
  3. N.A. Andrushchak, Ya.V. Bobitski,  A.S. Andrushchak. "A method of measuring the refractive index of optical materials with non-parallel sides of samples." Ukraine, Patent #69582, May 10, 2012.
  4. A.S. Andrushchak, B.V. Tybinka, N.A. Andrushchak, S.S. Dumych.  "Interferometric-turning method to measure the refractive index of optical materials." Ukraine, Patent #39155, Feb 10, 2009.
  5. A.S. Andrushchak, O.I. Syrotynsky, N.A. Andrushchak, Ye.M. Yaschyshyn.  "Interferometric-turning device for measuring the refractive index of isotropic and anisotropic materials in a range of millimeter and centimeter wavelengths." Ukraine, Patent №35224, Sep. 10, 2008.

 

Materials of Conferences

  1. N. Andrushchak, Y. Matviychuk, A. Andrushchak, “Application of a principle of mathematical models reduction for optimal vector of induced optical effects in crystalline materials for optoelectronics,” 2017 14th International Conference The Experience of Designing and Application of CAD Systems in Microelectronics, CADSM 2017, February 21-25, Polyana (Ukraine). – pp. 70-73. (oral presentation)
  2. N. Jaworski, N. Andrushchak, “A method of nanoporous anodic aluminum oxide structure modeling based on Bezier curves generation,” 2017 14th International Conference The Experience of Designing and Application of CAD Systems in Microelectronics, CADSM 2017, February 21-25, Polyana (Ukraine). – pp. 63-66. (oral presentation)
  3. N.A. Andrushchak, O.A. Buryy, V.T. Adamiv, I.M. Teslyuk, A.S. Andrushchak, A.V. Kityk, “Development of Crystalline Nanocomposites with KDP crystals as Nanofiller,” International Conference “Nanomaterials: Applications and Properties” (NAP), September 14-19, 2016, Lviv (Ukraine). – pp. 02NNSA10-1-2. (oral presentation)
  4. A.S. Andrushchak, O.A. Buryy, N.A. Andrushchak, O.M. Yaremko, A. Rusek, A.V. Kityk “Global maxima of linear electro-optic effect for selected widely used crystalline materials,” International Conference on Advanced Optoelectronics and Lasers (CAOL), 2016. – September 12-15, 2016, Odesa (Ukraine). pp. 176-178. (poster presentation)
  5. N.A Andrushchak, A.V. Kityk, A.S. Andrushchak. “Perspectives of Design of Crystalline Nanocomposites with Tailored Anisotropy as Active Elements in Optoelectronics,” Nanotechnology and Nanomaterials (NANO), 2016, August 24-27, Lviv (Ukraine). – p. 24. (poster presentation)
  6. A. Andrushchak, O. Buryy, B. Mytsyk, N. Andrushchak, N. Demyanyshyn, K. Chaban, A. Rusek, A. Kityk “Information Technology for Most Efficient Application of Bulk and Nаnocrystalline Materials as Sensitive Elements for Optoelectronic Devices,” 13th International Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science (TCSET), February 23 – 26, 2016, Lviv-Slavsko (Ukraine). – pp. 395–398. (oral presentation)
  7. N. Andrushchak “Development and Approbation of Novel Interference Technique for Materials Permittivity Investigation in the Frequency Range of 50-75 GHz,” 13th International Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science (TCSET), February 23–26, 2016, Lviv-Slavsko (Ukraine). – pp. 186–190. (oral presentation)
  8. N.A Andrushchak, Ye.M. Yashchyshyn, K. Godziszewski, J. Grothe, S. Kaskel, A.S. Andrushchak, A.V. Kityk. "Electro-optical investigation of bulk and nanostructured materials with tailored anisotropy in subTHz frequency range," Nanotechnology and Nanomaterials (NANO), 2015, August 26-29, Lviv (Ukraine). – p.19 (poster presentation).
  9. N.A. Andrushchak, V.S. Andrushchak. "Algorithms of Setup Operation for Measuring the Materials Permittivity in Millimeter Wave Range", in Proceedings of the 14th International Conference on the Experience of Designing and Application of CAD Systems in Microelectronics (CADSD'2015). – Feb. 24-27, 2015, Lviv(Ukraine). – pp. 102-105. (oral presentation)
  10. M.V. Lobur, Y.M.Yashchyshyn, P.V. Livchak, N.A. Andrushchak, O.M. Matviykiv, M.I. Andriychuk, O. Farafonov, M. Mischenko, N. Furmanova, J. Láčík, O. Wilfert, Z. Raida. "Development of Master Degree Program on Design and Application of Reconfigurable Smart Radioelectronic Devices", in Proceedings of the 14th International Conference on the Experience of Designing and Application of CAD Systems in Microelectronics (CADSD'2015). – Feb. 24-27, 2015, Lviv(Ukraine). – pp. 122-125. (oral presentation)
  11. N. Andrushchak, V. Koziy, I. Karbovnyk, A. Andrushchak. "Automated optical refractive index measurements using LabVIEW controlled gearless motor", in Proceedings of the XXII Ukrainian-Polish Conference (CADMD'2014). – Oct. 10-11, 2014, Lviv(Ukraine). – pp. 122-127. (oral presentation)
  12. N. Andrushchak, A. Yatskevych. "A new technological method for Evaluation of Postoperative Orthopedic Surgeries", in Proceedings of the XXII Ukrainian-Polish Conference (CADMD'2014). –  Oct. 10-11, 2014, Lviv(Ukraine). – pp. 128-132. (oral presentation)
  13. N.A. Andrushchak, Ye.M. Yashchyshyn, A.S. Andrushchak, I.D.Karbovnyk, V.B. Koziy. " Optic and quasi-optic investigations of nanocrystalline structures", in Proceedings of Nanotechnologies: from fundamental research to innovations, 2014, August 27-30, Lviv (Ukraine). – pp. 443-444. (poster presentation)
  14. Andrushchak A.S., Kushnir O.S., Yurkevych O.V., Andrushchak N.A., Adamiv V.T., Rusek A., and Kityk A. "Experimental and analytical investigations for the anisotropy of linear electrooptical and nonlinear optical effects in crystalline materials," in Proc. of Seventh international workshop “Relaxed, nonlinear and acoustic optical processes and materials” – RNAOPM’2014. – June 8-12, 2014, Lutsk–Lake “Svityaz’” (Ukraine). – pp. 7-9. (oral presentation)
  15. N. Andrushchak, Ye. Yashchyshyn, I. Karbovnyk, A. Vaskiv, A. Andrushchak. "A novel approach for measuring dielectric permittivity at Sub-THz frequencies using vector network analyzer," in Proceeding of the International Conference TCSET, 2014, pp. 168-170. (oral presentation)
  16. Ye. Yashchyshyn, N. Andrushchak, I. Karbovnyk, A. Andrushchak. "Sub-THz Automated Measurements of the Refractive Indices in Materials," in Proceeding of the XVIIIth International Seminar on Physics and Chemistry of Solids, 2012, p. 106. (oral presentation)
  17. N.A. Andrushchak, I.D. Karbovnyk, Ya.V. Bobitski, Ye.M. Yashchyshyn. "Dispersion of refractive indices of crystalline materials in a wide range of wavelength changes: from optical to centimeter," in Proceedings of the 5th Scientific Conference ITRE, 2012, p. 24 (in Ukrainian). (oral presentation)
  18. N. A. Andrushchak, Ya.V. Bobitskii, T.V. Maksymyuk, O.I. Syrotynsky, A.S. Andrushchak, I.D. Karbovnyk. "A new method for refractive index measurement of isotropic and anisotropic materials in millimeter and submillimeter wave range," in Proceeding of the 18th International Conference on Microwave, Radar and Wireless Communications MIKON, 2010, pp. 273–275. (oral presentation)
  19. I.D. Karbovnyk, N.A. Andrushchak, Y.V. Bobitskii, "Enhanced interferometric technique for non-destructive characterization of crystalline optical materials: automated express refractive index measurements," International Conference on Advanced Optoelectronics and Lasers (CAOL), 2010, Conference Proceedings, pp. 226-227. (oral presentation)
  20. N.A. Andrushchak, O.I. Syrotynsky. "Experimental setup for measuring the refractive index of materials in the range of millimeter-submillimeter wavelength," in Proceedings of the 5th International Scientific Conference for Youth "Modern problems of Radiotechnics and Telecommunications RT-2009", 2009, p. 194 (in Ukrainian). (oral presentation)
  21. A.S. Andrushchak, O.I. Syrotynskiy, N.A. Andrushchak. "Automation of measuring process of materials refractive indexes in the millimeter-submilimeter waves range by interferometric-turning method," in Proceedings of Intern. Conf. CAOL, 2008, p. 174. (oral presentation)
  22. N. Andrushchak, O. Syrotynsky. "An error estimation for determining the refractive indices plane-parallel plates by means of interferometric-turning method in the range of mm-submm waves," in Proceedings of the 11th Open Scientific Conference ITRE, 2008, p. 6 (in Ukrainian). (oral presentation)
  23. A.S. Andrushchak, O.I. Syrotynskiy, N.A. Andrushchak. "Automation of measuring process of materials refractive indexes in the millimeter waves range by interferometric-turning method," in Proceeding of the International Conference TCSET, 2008, p. 224. (oral presentation)
  24. N.A. Andrushchak, O.I. Syrotynsky. "Interferometric-turning method for measuring the refractive index of isotropic and anisotropic materials in the mm-submm range," in Proceedings of Modern Problems of Telecommunications and Specialists Training in Telecommunications, 2007, p. 12-13 (in Ukrainian). (oral presentation)