Zobrazeno 1 - 10
of 25
pro vyhledávání: '"N. E. Bykovsky"'
Autor:
B. Denker, K. V. Lopukhin, Yu. V. Senatsky, V. A. Petukhov, Yu. L. Kopylov, O. A. Burdukova, Boris N. Chichkov, Petr G. Zverev, N. E. Bykovsky, V. A. Konyushkin
Publikováno v:
2020 International Conference Laser Optics (ICLO).
Experiments on lasing in slurry-like active media based on dense mixtures of laser crystal or glass microparticles with immersion liquids are reported.
Publikováno v:
Laser and Particle Beams. 35:177-181
Since the beginning of the 1960s and up to the present time, laser ablation from metal surfaces under the action of short light pulses has been the topic of many researches. One of the first objects in the early ablation experiments presented thin me
Autor:
Yu. V. Senatsky, N. E. Bykovsky
Publikováno v:
Laser Congress 2019 (ASSL, LAC, LS&C).
Absorption jump at 0.66 and 1.06 μm wavelengths in the area of 0.5ns laser pulse self-focusing in neodymium glasses followed by 5–35 ns transmission recovery was registered. A physical model explaining this dynamics is presented.
Publikováno v:
Quantum Electronics. 46:128-132
A jump in the transmittance (from ~0.1% to ~50% for ~1 ns) of an optical gate on a Mylar film (a thin aluminium layer on a Lavsan substrate) irradiated by nanosecond (10-7 – 10-8 s) pulses of a neodymium laser with an intensity up to 0.1 GW cm-2 ha
Autor:
Yu. V. Senatsky, N. E. Bykovsky, E. A. Cheshev, Boris N. Chichkov, V. A. Konyushkin, Yu. L. Kopylov, K. Kurselis, A. L. Koromyslov, A. Evlyukhin
Publikováno v:
2018 International Conference Laser Optics (ICLO).
Prospects of active media based on nano- and microparticles of laser crystals and glasses are discussed. Study on laser beams propagation over the index-matched mixtures of solid microparticles with liquids and results of experiments on pumping and l
Autor:
Yu. V. Senatsky, N. E. Bykovsky
Publikováno v:
Laser Physics. 20:478-486
Spectral lines of Yb lasing in 1.03–1.05 μm region structured by 50–200 μm spots were found at focusing a pulsed LiF:F 2 + color center laser of 0.5–5.0 GW/cm2 intensity on highly doped Yb:YAG or Yb:glass plates in a resonator. Small spots at
Autor:
Yu.V. Senatsky, N E Bykovsky
Publikováno v:
Laser Physics Letters. 5:664-670
Nanosecond pulses of broadband collimated generation in the wavelength region of 1.0–1.06 μm were observed at focusing the pump radiation from LiF:F2+ color center laser onto the plates from YAG:Yb crystal or Yb-doped phosphate glass. Spectra of t
Publikováno v:
Quantum Electronics. 34:1138-1142
An Yb:YAG laser crystal containing 20% of Yb was pumped by a F2+:LiF colour centre laser emitting in the spectral range from 0.89 to 0.95 μm. We managed to pump 10% of a total amount of Yb ions to the 2F5/2 metastable level of ytterbium in small vol
Autor:
Yu. V. Senatsky, N. E. Bykovsky
Publikováno v:
Acoustic Waves-From Microdevices to Helioseismology
During several last decades much attention was paid to the processes that occur in solidstate optical media under the interaction with high-power focused laser radiation. A great number of studies were devoted to the phenomena of optical breakdown, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c70560f9c64748a6874ba1737b5236d
https://doi.org/10.5772/20284
https://doi.org/10.5772/20284
Publikováno v:
Laser Physics Letters. 12:056102
The morphology of craters on the YAG crystal surface caused by broadband (≈500 A) nanosecond laser pulses with intensities 109–1010 W cm−2 was studied. A mechanism of structural changes and the appearance of craters due to plastic deformations