Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Roman Khmelnitskii"'
Publikováno v:
Materials, Vol 16, Iss 12, p 4309 (2023)
In the present study, copper and silver nanoparticles with a concentration of 20 µg/cm2 were synthesized using the method of laser-induced forward transfer (LIFT). The antibacterial activity of the nanoparticles was tested against bacterial biofilms
Externí odkaz:
https://doaj.org/article/6fa98905d09949a982fc3f1f1bbb2f31
Autor:
Michael Kovalev, Alena Nastulyavichus, Ivan Podlesnykh, Nikita Stsepuro, Victoria Pryakhina, Evgeny Greshnyakov, Alexey Serdobintsev, Iliya Gritsenko, Roman Khmelnitskii, Sergey Kudryashov
Publikováno v:
Materials, Vol 16, Iss 12, p 4439 (2023)
The absorption of light in the near-infrared region of the electromagnetic spectrum by Au-hyperdoped Si has been observed. While silicon photodetectors in this range are currently being produced, their efficiency is low. Here, using the nanosecond an
Externí odkaz:
https://doaj.org/article/9bac576cb7374762a51c2848b47ac492
Publikováno v:
C, Vol 9, Iss 2, p 55 (2023)
We investigated the IR absorption spectra of CVD diamond damaged by fast neutrons (>0.1 MeV) with high fluences ranging from 1 × 1018 to 2 × 1019 cm−2 and annealed at temperatures of 200 °C to 1680 °C. After annealing above 1000 °C, the format
Externí odkaz:
https://doaj.org/article/6054c3bc0d91456798dbfe2e8f77647d
Autor:
Irina Saraeva, Eteri Tolordava, Svetlana Sheligyna, Alyona Nastulyavichus, Roman Khmelnitskii, Nikolay Pokryshkin, Dmitriy Khmelenin, Sergey Kudryashov, Andrey Ionin, Andrey Akhmatkhanov
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 6, p 5119 (2023)
We report the successful inactivation of P. aeruginosa strain by femtosecond infrared (IR) laser radiation at the resonant wavelengths of 3.15 μm and 6.04 μm, chosen due to the presence of characteristic molecular vibrations in the main structural
Externí odkaz:
https://doaj.org/article/1dec603837f54cfbaa63dedd903a51b4
Autor:
Elena Rimskaya, Galina Kriulina, Evgeny Kuzmin, Sergey Kudryashov, Pavel Danilov, Alexey Kirichenko, Nikolay Rodionov, Roman Khmelnitskii, Jiajun Chen
Publikováno v:
Photonics, Vol 10, Iss 2, p 135 (2023)
Micromarks were formed in bulk natural IaAB-type diamond laser-inscribed by 515 nm 0.3 ps femtosecond laser pulses focused by a 0.25 NA micro-objective at variable pulse energies in sub-picosecond visible-range laser regimes. These micromarks were ch
Externí odkaz:
https://doaj.org/article/328121122e7849f49be184fe5cf17064
Autor:
Sergey Kudryashov, Galina Kriulina, Pavel Danilov, Evgeny Kuzmin, Alexey Kirichenko, Nikolay Rodionov, Roman Khmelnitskii, Jiajun Chen, Elena Rimskaya, Vladimir Shur
Publikováno v:
Nanomaterials, Vol 13, Iss 2, p 258 (2023)
Natural IaA+B diamonds were exposed in their bulk by multiple 0.3 ps, 515 nm laser pulses focused by a 0.25 NA micro-objective, producing in the prefocal region (depth of 20–50 μm) a bulk array of photoluminescent nanostructured microtracks at var
Externí odkaz:
https://doaj.org/article/2379ab8c8ba74f69bf5d6c9a4690aa46
Autor:
Sergey Kudryashov, Pavel Danilov, Nikita Smirnov, George Krasin, Roman Khmelnitskii, Oleg Kovalchuk, Galina Kriulina, Victor Martovitskiy, Vasily Lednev, Pavel Sdvizhenskii, Yulia Gulina, Elena Rimskaya, Evgeny Kuzmin, Jiajun Chen, Michael Kovalev, Alexey Levchenko
Publikováno v:
Nanomaterials, Vol 13, Iss 1, p 192 (2023)
The ultrashort-laser photoexcitation and structural modification of buried atomistic optical impurity centers in crystalline diamonds are the key enabling processes in the fabrication of ultrasensitive robust spectroscopic probes of electrical, magne
Externí odkaz:
https://doaj.org/article/1bc38a454ac54c369246757f3f3642b9
Autor:
Sergey Kudryashov, Elena Rimskaya, Evgeny Kuzmin, Galina Kriulina, Victoria Pryakhina, Andrey Muratov, Roman Khmelnitskii, Evgeny Greshnyakov, Pavel Danilov, Vladimir Shur
Publikováno v:
Chemosensors, Vol 11, Iss 1, p 24 (2022)
Natural diamonds with a rich variety of optically blind and optically active nitrogen impurity centers were explored at a nano/microscale on the surface and in bulk by a number of advanced chemical and structural analytical tools in order to achieve
Externí odkaz:
https://doaj.org/article/6dce33f62ca74602a121cfd43c81ee59
Autor:
Pavel Danilov, Evgeny Kuzmin, Elena Rimskaya, Jiajun Chen, Roman Khmelnitskii, Alexey Kirichenko, Nikolay Rodionov, Sergey Kudryashov
Publikováno v:
Micromachines, Vol 13, Iss 11, p 1883 (2022)
Elongated photoluminescent micromarks were inscribed inside a IaAB-type natural diamond in laser filamentation regime by multiple 515 nm, 0.3 ps laser pulses tightly focused by a 0.25 NA micro-objective. The micromark length, diameter and photolumine
Externí odkaz:
https://doaj.org/article/223104314d36475aa6a5ecc726376848
Autor:
Kudryashov, Michael Kovalev, Alena Nastulyavichus, Ivan Podlesnykh, Nikita Stsepuro, Victoria Pryakhina, Evgeny Greshnyakov, Alexey Serdobintsev, Iliya Gritsenko, Roman Khmelnitskii, Sergey
Publikováno v:
Materials; Volume 16; Issue 12; Pages: 4439
The absorption of light in the near-infrared region of the electromagnetic spectrum by Au-hyperdoped Si has been observed. While silicon photodetectors in this range are currently being produced, their efficiency is low. Here, using the nanosecond an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::dd2d3a67f8dca76cd5db322c6e8a7ba1