Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Oleg Ryabushkin"'
Autor:
Nikolai Khokhlov, Ivan Grishchenko, Ekaterina Shevelkina, Denis Bindyug, Ekaterina Barkanova, Dmitry Denisov, Dmitry Demushkin, Ivan Telegin, Ekaterina Yezhikova, Igor Avetissov, Roman Avetisov, Alexey Konyashkin, Oleg Ryabushkin
Publikováno v:
Crystals, Vol 14, Iss 9, p 792 (2024)
The bulk of the LiNa5Mo9O30 (LNM) crystals were successfully grown in the [010] and [001] directions without internal inclusions and cracks, using the Czochralski method with a low temperature gradient. The crystal grown in the [010] direction showed
Externí odkaz:
https://doaj.org/article/773a9288300944b88f2533111171e041
Autor:
Nikita Kovalenko, Kirill Sovin, Tatiana Malikova, Artur Smirnov, Vladimir Anpilov, Oleg Ryabushkin
Publikováno v:
Journal of biophotonicsREFERENCES. 15(11)
Development of methods for simultaneous control of state of biological tissues during optical treatment is the important tasks in laser surgery. We introduce a novel approach for the monitoring of the state of biological tissues in the process of its
Publikováno v:
Biomedical physicsengineering express. 8(5)
We have developed an original method to measure the temperature dependence of the biological tissue electrical properties based on its heating by homogeneous optical radiation.The conventional approach in hyperthermia research involves heating due to
Publikováno v:
2020 International Conference Laser Optics (ICLO).
An analytical model describing the change in polarization state of the light passing through the magneto-optical crystal is demonstrated. Dependence of polarization extinction ratio on reflection coefficient of the crystal faces, phase delay between
Publikováno v:
2020 International Conference Laser Optics (ICLO).
A method for fiber laser output power measurement using a copper-coated optical fiber is proposed. Optical radiation transmitting through the sensor fiber core is partially scattered and absorbed in the metal layer. Its electrical resistance change p
Publikováno v:
2020 International Conference Laser Optics (ICLO).
Thermo-optical characteristics of silicone polymers significantly affect fiber laser heating due to absorption of pump and laser radiation. Heating of the Yb-doped fiber laser unit was investigated experimentally. Numerical model of fiber laser unit
Publikováno v:
2020 International Conference Laser Optics (ICLO).
A novel method for high-sensitive measurements of laser radiation attenuation in metal-coated optical fibers in a wide range of wavelengths is demonstrated. To study the dependences of optical losses on the fiber structure a number of single-mode and
Publikováno v:
2020 International Conference Laser Optics (ICLO).
A modification of integrating spheres method was proposed, allowing to measure temperature dependencies of biological tissues optical properties. Measurements of absorption coefficient, scattering coefficient and anisotropy factor of an egg yolk were
Publikováno v:
Applied optics. 59(28)
A novel method of acoustic resonance laser calorimetry (ARLC) for the determination of low optical absorption coefficients of crystals and glasses is introduced. It is based on measurements of the kinetics of the equivalent temperature of the sample
Publikováno v:
Applied optics. 59(24)
Phase-matching temperature tuning curves and longitudinal temperature distribution of periodically poled lithium niobate (PPLN) crystal were measured in the process of second-harmonic generation (SHG) of 1070 nm pump wavelength using tiny transparent