A5017005501- Photorefractive and Nonlinear Optics
- Magneto-Optical Properties and Applications
- Solid State Laser Technologies
- Luminescence Properties of Advanced Materials
- Photonic and Optical Devices
- Optical and Acousto-Optic Technologies
- Advanced Fiber Optic Sensors
- Glass properties and applications
- Microwave Dielectric Ceramics Synthesis
- Ferroelectric and Piezoelectric Materials
- Magnetic properties of thin films
- Advanced Fiber Laser Technologies
- Surface Roughness and Optical Measurements
- Semiconductor Lasers and Optical Devices
- Advanced Semiconductor Detectors and Materials
- Electronic and Structural Properties of Oxides
- Radiation Detection and Scintillator Technologies
- Semiconductor Quantum Structures and Devices
- Physics of Superconductivity and Magnetism
- Characterization and Applications of Magnetic Nanoparticles
- Photonic Crystals and Applications
- Laser Design and Applications
- Acoustic Wave Resonator Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Magnetic Field Sensors Techniques
Lviv Polytechnic National University
2018-2025
Electron (Ukraine)
2010-2025
Joint Stock Company National Research Institute Electron
2022-2025
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics
2020
State Scientific and Technical Library of Ukraine
2017
Lviv University
1999-2013
Featuring low heat dissipation, devices based on spin-wave logic gates promise to comply with increasing future requirements in information processing. In this work, we present the experimental realization of a majority gate interference spin waves an Yttrium-Iron-Garnet-based waveguiding structure. This device features three-input combiner encoded phase waves. We show that output signal represents input signals. A switching time about 10 ns prototype provides evidence for ability...
This paper is devoted to the investigation of plasmonic effect metal nanoparticles (NPs) formed on surface YAG: Bi, Ce, Yb phosphors in a temperature range between 4 and 300 K. Combination thin conversion layer with silver nanostructures leads increase sensitizer absorption emission efficiency. Enhancement Bi3+ luminescence YAG epitaxial films Ag NPs was observed upon cooling samples below 200 High enhancement factors were associated closely matching maximum plasmon extinction bands. The...
Unintentionally doped (UID), Mn, and Mn-Si β-Ga2O3 polycrystalline samples were synthesized by high-temperature solid-state chemical reaction. UID has intense host emission in the 350–550 nm wavelength range. The intensity of luminescence bands UV, blue, green spectral regions decreased strongly approximately 1000 times Mn-doped samples. Against a decrease samples, weak band yellow–orange range with maximum about 605 was registered. It found that doping manganese increases resistivity...
This work uses wavevector-resolved Brillouin light scattering spectroscopy in combination with a theory of dipole-exchange spin-wave spectra to show that, obliquely magnetized free magnetic films, the in-plane propagation spin waves is accompanied by transverse current along film normal without any corresponding transport energy.
By means of X-ray structure analysis, the crystal neodymium gallium perovskite (NGP) single crystals (NdGaO3) being used as a substrate for HTSC film epitaxy has been refined and position atoms determined. The possibility YBa2Cu3O7-x on plane (110) NGP well its advantages pitfalls are analysed from structural data. twinning types in were established. substrates is found to be stable up temperature 1173 K, differentiated LaGaO3 LaAlO3 substrates. It intimated that oriented (001) can result...
Multifunctional nanocomposites from an equimolar As4S4/Fe3O4 cut section have been successfully fabricated coarse-grained bulky counterparts, employing two-step mechanochemical processing in a high-energy mill operational dry- and wet-milling modes (in aqueous solution of Poloxamer 407 acting as surfactant). As was inferred the X-ray diffraction analysis, these surfactant-free surfactant-capped are β-As4S4-bearing nanocrystalline-amorphous substances supplemented by iso-compositional...
Lu2.1 Bi0.9Fe5 O12 (LuBiIG) garnet films are prepared by liquid phase epitaxy (LPE) method on gadolinium gallium (GGG) substrates from lead-free flux. Three-inch single crystal with (444) orientation and good surface successfully fabricated. The lattice mismatch to the GGG(111) substrate is as small 0.08%. ferromagnetic resonance (FMR) linewidth of film 2ΔH = 2.8–5.1 Oe, Faraday rotation 1.64 deg/μm at 633 nm room temperature optical absorption coefficient 600 cm−1 in visible range about...
The La-doped yttrium iron garnet (YIG) films with thickness up to 130 μm were grown by liquid phase epitaxy (LPE) method. All thick demonstrate “mirror” and “striation” types of surface morphology that depend from film growth temperature thickness. Addition B2O3 is favourable a change the into one. mechanisms morphological changes are discussed. It was found ferromagnetic resonance (FMR) linewidth appreciably depends films. For FMR less than 0.8 Oe more ten times in comparison surface.
Nanocrystalline compounds LiNb1−xTaxO3 of various compositions (x = 0, 0.25, 0.5, 0.75, 1) were synthesized by high-energy ball milling the initial materials (Li2CO3, Nb2O5, Ta2O5) and subsequent high-temperature annealing resulting powders. Data on phase composition nanopowders obtained X-ray diffraction methods, dependence structural parameters value x was established. As a result experiments, optimal runs determined, which made it possible to obtain single-phase compounds. The Raman...
Abstract. Excitation and emission spectra under UV X-ray excitations, as well the luminescence decay kinetics of Gd 3 Ga 5 O 12 : Bi single crystalline films were studied. The observed in spectral region 350-700 nm at room temperature consist two elementary bands peaked 446 521 nm. influence growth conditions on luminescent properties 3+ garnet have been revealed. integral relative intensities depend excitation wavelength. curves all investigated show non-single exponential behavior temperature.