A5053982175- Solid State Laser Technologies
- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Advanced ceramic materials synthesis
- Magneto-Optical Properties and Applications
- Photorefractive and Nonlinear Optics
- Microwave Dielectric Ceramics Synthesis
- Advanced Fiber Laser Technologies
- Laser Design and Applications
- Chalcogenide Semiconductor Thin Films
- Microwave-Assisted Synthesis and Applications
- Phase-change materials and chalcogenides
- Polymer Nanocomposite Synthesis and Irradiation
- Advanced materials and composites
- Ion-surface interactions and analysis
- Laser Material Processing Techniques
- Magnesium Oxide Properties and Applications
- Ferroelectric and Piezoelectric Materials
- Diamond and Carbon-based Materials Research
- Photonic Crystal and Fiber Optics
- Semiconductor materials and interfaces
- Optical properties and cooling technologies in crystalline materials
- Spectroscopy and Laser Applications
- Semiconductor Quantum Structures and Devices
- Nuclear materials and radiation effects
Zhejiang University
2024-2025
Institute of Chemistry of High-Purity Substances them. G.G.Devyatyh
2015-2024
N. I. Lobachevsky State University of Nizhny Novgorod
2004-2024
Yaroslav-the-Wise Novgorod State University
2022-2024
Russian Academy of Sciences
1999-2022
Development Agency of Serbia
2022
Institute of Applied Physics
2016-2021
Bulgarian Academy of Sciences
1987-2012
Georgi Nadjakov Institute of Solid State Physics
1993-2012
Czech Academy of Sciences, Institute of Sociology
1999-2011
Samples of the magneto-active material—Tb3+:Y2O3 ceramics with Tb3+ ion concentrations 10%, 20%, 30%, and 100% (Tb2O3)—were prepared studied. The wavelength dependence Verdet constant in 380 nm–1750 nm range was approximated for all investigated ceramic samples predicted a pure Tb2O3 material. demonstrates more than three times higher comparison terbium gallium garnet crystal or ceramics. linear on concentration Tb3+:Y2O3 demonstrated. obtained data will be useful fabricating magneto-optical...
The method of self-propagating high-temperature synthesis submicron powders with subsequent vacuum sintering was used to produce a series optical ceramics based on dysprosium oxide (DyxY0.95-xLa0.05)2O3, where x=0.7, 0.85, and 0.9. influence composition transmission the obtained samples investigated. studied materials had several transparency windows in visible 500-730 nm, near-IR 1900-2300 mid-IR 3500-7500 nm ranges. dependence Verdet constant wavelength 400-1940 range measured for each...
Abstract A glycine-nitrate self-propagating high-temperature synthesis (SHS) was developed to produce composite MgO-Gd 2 O 3 nanopowders. The X-ray powder diffraction (XRD) analysis confirmed the SHS-product consists of cubic MgO and Gd phases with nanometer crystallite size retains this structure after annealing at temperatures up 1200 °C. Near full dense high IR-transparent ceramics were fabricated by spark plasma sintering (SPS) 1140 °C 60 MPa. in-line transmittance 1 mm thick exceeded...
We report on a detailed revision of the spectroscopic properties Er 3+ ions in cubic sesquioxide host crystals R 2 O 3 (R = Y, Lu and Sc). The 4f-4f transition probabilities are calculated by applying modified Judd-Ofelt theory accounting for configuration interaction based measured absorption spectra. stimulated-emission cross-sections 4 I 11/2 → 13/2 (at ∼2.8 µm) 15/2 ∼1.6 transitions determined luminescence dynamics from manifolds studied at different temperatures. It is found that...
Simultaneous dual-wavelength laser oscillation of Tm:YLF at 1.9 and 2.3 µm were successfully realized. The three-mirror cavity was exploited to study performance, which is formed by a shared input mirror two independent output couplers for the wavelengths. Under an absorbed pump power 15.2 W, maximum CW powers 5.49 W around 1908nm 1.12 2305 nm simultaneously obtained, corresponding total optical-to-optical conversion efficiency 43.5%. A Cr2+:ZnSe further used passively Q-switch laser,...
The magneto‐optical ceramics of terbium oxide doped with different rare earth elements (REE) REE:Tb 2 O 3 (REE—Y 3+ , Lu Sc Ce Dy Ho Yb Nd ) are successfully fabricated by hot pressing using powders obtained the self‐propagating high‐temperature synthesis (SHS) method. prepared have good optical quality and properties. in‐line transmittance Tb REE except is close to undoped oxide, especially in long‐wavelength region. Verdet constant samples considered at 633 nm about 3.3 2.6 times higher...
The ceramic samples fabricated by spark plasma sintering of powder mixtures based on silicon nitride (Si3N4) were investigated. made wet chemical methods from commercial α-Si3N4 (the particle size <5 μm) and Y2O3-Al2O3 additive (3% to 10% wt.). Sintering was carried out at the heating rate 50 °C/min load 70 MPa until shrinkage end. characterized scanning electron microscopy X-ray diffraction. during analyzed, activation energy calculated according Young-Cutler model. density,...
As a result of preliminary air calcination and subsequent reduction in flowing NH3 atmosphere the precursor from liquid precipitation method for first time, pure-phase Tb2O3 powder with an average particle size 135 nm was prepared. The magneto-optical transparent ceramics grain 1.3 μm were successfully fabricated by vacuum pre-sintering hot isostatic pressing post-treatment as-synthesized powder. In-line transmittance values reach 70.3% at 633 nm, 78.1% 1064 79.4% 1400 respectively. Thanks...