A5009383401- Semiconductor Lasers and Optical Devices
- Advanced Fiber Optic Sensors
- Analytical Chemistry and Sensors
- Laser-Matter Interactions and Applications
- Optical Network Technologies
- Advanced Measurement and Metrology Techniques
- Engineering Technology and Methodologies
- Orbital Angular Momentum in Optics
- Photonic Crystals and Applications
- Optical and Acousto-Optic Technologies
- Advanced Fiber Laser Technologies
- Surface Roughness and Optical Measurements
- Photonic and Optical Devices
- Long-Term Effects of COVID-19
- Respiratory viral infections research
- Respiratory Support and Mechanisms
- Mechanical and Optical Resonators
- Material Properties and Applications
- Laser Material Processing Techniques
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Photorefractive and Nonlinear Optics
- Pneumonia and Respiratory Infections
- Photonic Crystal and Fiber Optics
- Acoustic Wave Resonator Technologies
- Streptococcal Infections and Treatments
Perm National Research Polytechnic University
2020-2023
City Clinical Hospital
2022-2023
Scientific Research Institute of Polymer Material (Russia)
2020
Post-COVID syndrome develops after COVID-19 (COronaVIrus Disease 2019) and leads to cumulative effects in the form of shortness breath impaired lung function. Notably, patients with airway inflammation were found have increased concentrations hyaluronic acid (HA). Since bovhyaluronidase azoximer (Longidase®) catalyzes hydrolysis HA, this drug has potential reduce HA levels improve function post-COVID syndrome. The aim DISSOLVE trial, which was conducted early pandemic, investigate efficacy...
This work focuses on the methods of creating in-fiber devices, such as sensors, filters, and scatterers, using fiber fuse effect. The effect allows for creation structures in a core. However, it is necessary to know exactly how this process works, when plasma spark occurs, what size reaches, depends external parameters power wavelength radiation. Thus, present study aims create possibility predicting consequences optical breakdown. paper describes mathematical model breakdown initiation core...
This article describes a mathematical model of an optical fiber core breakdown based on the thermal conductivity equation. The problem is solved in axisymmetric formulation. computational domain consists four elements with different thermophysical properties at boundaries which conjugation conditions are fulfilled. term describing heat source defined by radiation wavelength and refraction indexes shell. It also includes absorption coefficient showing resulting from electron release due to...
The paper considers a quasi – periodic microheterogeneity structure formed under the effect of optical fiber melting, which can be used as sensitive element for an sensor based on Fabry Perot interferometer or radiation scatterer with improved flexibility and strength parameters. Mathematical modeling process transmission reflection microcavities intrafiber will make it possible to predict characteristics developed sensors. simulation was carried out in COMSOL Multyphysics package. A section...
This article discusses the layout of a non-contact fiber optic connector for high-power laser radiation delivery systems in field using Expanded Beam technology (Beam Expander).The being implemented, contrast to contact technology, helps reduce optical loss from contamination and displacement core fibers.The diameter beam after passing through lens becomes 15 times larger than fiber, thereby reducing losses dust particles at ends fibers, which, due their size, can introduce significant...
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The paper describes a technique for manufacturing samples of fiber diffusers based on fibers with gradient refractive index profile and double cladding. Fiber can be used in medicine, example, as sources input radiation photodynamic therapy or heat phototherapeutic devices such dressings blankets. experiments creating quasi-periodic non-periodic structures from microdefects inside optical by means breakdown subsequent melting the core moving plasma spark. On basis experimental data, optimal...
Исследован процесс распространения оптического разряда
The present work is devoted to the development of a gradient optical system mode-spot compression. In course numerical simulation was carried out and best value compression found. results were verified in experiment.
This article evaluates the lifetime of laser diodes using an accelerated test program. Due to very long diode, it is impractical under normal conditions; for this, aging product at higher temperatures used. The Arrhenius model used estimate MTBF. provides statistical measurement data and calculated values diode lifetime.