Search Results - "Uryupina, D."
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1
Transverse structure and energy deposition by a subTW femtosecond laser in air: from single filament to superfilament
Published in New journal of physics (28-03-2019)“…We traced experimentally transition from a single air filament to the superfilament under action of powerful loosely focused (NA ∼ 0.0021) femtosecond beam…”
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Journal Article -
2
Robust multifilament arrays in air by Dammann grating
Published in Optics express (11-10-2021)“…We compare transverse structure evolution and energy deposition into the medium within focused multifilament arrays created using two different types of…”
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3
Formation of an O-Shaped Structure in the Red Wing of the Frequency–Angular Spectrum During Filamentation on a Long Atmospheric Path
Published in JETP letters (2024)“…An O-shaped structure at wavelengths of 930–960 nm in the frequency–angular spectrum of the supercontinuum generated during the filamentation of a femtosecond…”
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4
Nonlinear increase in the energy input into a medium at the fusion of regularized femtosecond filaments
Published in JETP letters (01-11-2017)“…The fusion in air of four femtosecond laser beams each with the peak power several times higher than the critical self-focusing power has been studied…”
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5
Translation of Modal Verbs in Media Texts: Corpus-Based Approach
Published in Nauc̆nyj dialog (Online) (01-05-2023)“…The main modal verbs of the English language (can, could, may, must, should, need, will, would) in media texts have been studied, namely the ways of their…”
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6
The Focal Length Effect on Energy Absorption and Terahertz Generation upon Focusing Two-Color Radiation in Air
Published in Moscow University physics bulletin (01-03-2019)“…Generation of terahertz radiation upon filamentation in air of two-color radiation in loose focusing conditions with focal lengths from 30 to 312 cm and a beam…”
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7
Optimization of a femtosecond pulse self-compression region along a filament in air
Published in Applied physics. B, Lasers and optics (01-04-2008)“…We have identified the pulse self-compression region in a filament produced by 55 fs, 4 mJ, 805 nm radiation propagating in air without geometrical focusing…”
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8
X-Ray Diagnostics of Ultrashort Laser-Driven Plasma: Experiment and Simulations
Published in Contributions to plasma physics (1988) (01-02-2013)“…The complex approach combining experimental data on X‐ray diagnostics of plasma, the results of the numerical PIC simulation of laser‐plasma interaction…”
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9
Angular distribution of the terahertz radiation intensity from the plasma channel of a femtosecond filament
Published in JETP letters (01-08-2011)“…A phenomenological model of the terahertz radiation of the plasma channel of a femtosecond filament has been elaborated that satisfactorily describes the…”
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10
Enhanced production of fast multi-charged ions from plasmas formed at cleaned surface by femtosecond laser pulse
Published in Applied physics. B, Lasers and optics (01-05-2005)“…We present atomic, energy, and charge spectra of ions accelerated at the front surface of a silicon target irradiated by a high-contrast femtosecond laser…”
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11
Multifilament arrays from terawatt femtosecond beam over an extended atmospheric path
Published in 2022 International Conference Laser Optics (ICLO) (20-06-2022)“…This paper presents results of experimental study of the stochastic and regularized filamentation of terawatt femtosecond radiation on a distances 1-40 m in…”
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Conference Proceeding -
12
Optimization of terahertz production from femtosecond multi- and superfilaments in air
Published in 2020 International Conference Laser Optics (ICLO) (02-11-2020)“…The experimental results of energy deposition into the medium measurements and THz radiation measurements in case of two-color filamentation and filamentation…”
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Conference Proceeding -
13
40-meter postfilament evolution in air
Published in 2022 International Conference Laser Optics (ICLO) (20-06-2022)“…We performed full characterization of postfilament formed by the radiation of the Ti: Sa laser system on an extended atmospheric path. Single-shot…”
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Conference Proceeding -
14
Formation of fast multicharged heavy ions under the action of a superintense femtosecond laser pulse on the cleaned surface of a target
Published in Journal of experimental and theoretical physics (01-08-2006)“…It is found that the mean charge of tungsten ions in a solid tungsten target cleaned from the surface layer of hydrocarbon and oxide compounds and exposed to…”
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Journal Article -
15
Enhanced forward THz yield from the long DC-biased femtosecond filament
Published in Optics and laser technology (01-04-2023)“…We observed huge, almost two orders of magnitude, increase in the energy of the forward terahertz (THz) emission by the long femtosecond filament if transverse…”
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16
Three-domain stabilization of femtosecond filament red-shifted light bullet in air by means of beam amplitude modulation
Published in Optics and laser technology (01-01-2025)“…We propose an approach to stabilize the parameters of filament-generated infrared light bullet against pulse-to-pulse fluctuations in three domains: spectral,…”
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17
High repetition rate laser-driven K α X-ray source utilizing melted metal target
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2011)“…We report our experimental results on hard X-ray generation and stability parameters of a laser-driven plasma X-ray source using a melted gallium target…”
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18
High repetition rate laser-driven K sub([alpha] X-ray source utilizing melted metal target)
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2011)“…We report our experimental results on hard X-ray generation and stability parameters of a laser-driven plasma X-ray source using a melted gallium target…”
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Journal Article -
19
Novel photonuclear techniques based on femtosecond lasers
Published in Physics of particles and nuclei letters (2014)“…The results of X-ray diagnostics of plasma created at a material surface by a laser pulse with an intensity of up to 2.5 × 10 18 W/cm 2 are presented. The…”
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Journal Article -
20
Acceleration of heavy multicharged ions in the interaction of a subrelativistic femtosecond laser pulse with a melted metal surface
Published in Plasma physics reports (01-02-2010)“…Results are presented from experimental studies of ion acceleration under the action of femtosecond laser pulses with an intensity of 10 17 W/cm 2 , incident…”
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