A5000818723- Phase-change materials and chalcogenides
- Glass properties and applications
- Solid State Laser Technologies
- Chemical Synthesis and Characterization
- Nuclear materials and radiation effects
- Photonic Crystal and Fiber Optics
- Solid-state spectroscopy and crystallography
- Thermal and Kinetic Analysis
- Crystal Structures and Properties
- Zeolite Catalysis and Synthesis
- Inorganic Chemistry and Materials
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Optical and Acousto-Optic Technologies
- Nonlinear Optical Materials Studies
- Mineralogy and Gemology Studies
- Thermal Expansion and Ionic Conductivity
- Luminescence Properties of Advanced Materials
- Chalcogenide Semiconductor Thin Films
- Spectroscopy and Laser Applications
- Material Science and Thermodynamics
- Catalysis and Oxidation Reactions
- Nonlinear Optical Materials Research
- Chemical Thermodynamics and Molecular Structure
- Advanced Fiber Laser Technologies
Institute of Chemistry of High-Purity Substances them. G.G.Devyatyh
2015-2024
Russian Academy of Sciences
2008-2021
N. I. Lobachevsky State University of Nizhny Novgorod
2008-2020
Yaroslav-the-Wise Novgorod State University
2002-2015
A.V. Topchiev Institute of Petrochemical Synthesis
2008-2012
Saratov State University
2002-2008
Efficient room temperature mid-infrared laser action in a Ce
Evanescent wave spectroscopy in the mid-infrared (MIR) is a powerful tool for remote real-time sensing. Chalcogenide fibers transparent MIR are considered as base creation of fiber-optical platform In this paper, rigorous theoretical approach has been applied analysis evanescent modes propagation multimode chalcogenide fiber surrounded by an absorbing medium. A role particular mode power delivering through revealed. Strong absorption water spectral range shown to be main factor limiting...
In high purity <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mi mathvariant="normal">C</mml:mi> mathvariant="normal">e</mml:mi> </mml:mrow> <mml:mn>3</mml:mn> <mml:mo>+</mml:mo> </mml:msup> </mml:math> -doped selenide glass pumped by a 4.08 µm Fe:ZnSe laser, 5.1–5.5 laser oscillations were observed. This is the first evidence of action corresponding to <mml:mi/> <mml:mn>2</mml:mn> <mml:msub>...
An extensive study of a novel room-temperature mid-infrared Ce 3+ -doped Ge 20 Sb 10 Ga 5 Se 65 glass laser is reported. influence output-coupler transmission on efficiency and emission spectra investigated. Pumped by pulsed Fe:ZnSe at 4.1 µm, maximum output energy 35 mJ demonstrated 5.2 with threshold about 60 slope 21%. The tuning range Ce:glass reported for the first time: an intracavity prism, continuously tunable in spectral 4.5–5.6 µm. internal losses are determined to be below 9% per...
Recent results of research passive and active optical waveguides made high-purity chalcogenide glasses for middle infrared fiberoptic evanescent wave spectroscopy liquid gaseous substances are presented. On the basis selenide telluride glass fibers, novel types highly sensitive fiber probes developed. Pr(3+)- Tb(3+)-doped Ga(In)-Ge-As-Se Ga-Ge-Sb-Se 4.2–6 μm wavelength radiation sources created all-fiber sensor systems. Successful testing sensors analysis some mixtures was carried out.
The influence of rare earth dopant concentration on selenide laser glass quality was investigated. A problem to be solved identified – an increase in doping level leads optical losses due light scattering by heterogeneous inclusions and the decrease damage threshold. room temperature system consisting 4.6 μ m pulsed Fe:ZnSe pump Ce 3+ :Ge 20 Sb 10 Ga 5 Se 65 bulk demonstrated. slope efficiency :glass with respect absorbed energy reached 25% a maximum output 45 mJ.