Výsledky vyhledávání - "B V, Rumiantsev"

Generation of Intense Few-Cycle Terahertz Radiation in Organic Crystals Pumped by 1.24-μm Multigigawatt Chirped Laser Pulses

Autor: B. V. Rumiantsev, A. V. Pushkin, D. Z. Suleimanova, N. A. Zhidovtsev, F. V. Potemkin

Publikováno v: JETP Letters. 117:566-573

It has been shown that the spectrum of intense few-cycle terahertz radiation generated in a DAST organic crystal can be controlled by chirping 1.24-μm pump femtosecond laser radiation of a chromium forsterite laser system. It has been found that an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02ed9b8b0f4fe4a713df175eb00c5bd5
https://doi.org/10.1134/s0021364023600416

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Effect of the Length and Pressure of a Gas Jet on Optical Harmonics Generation by 4.5-μm Femtosecond Laser Radiation of a Fe:ZnSe Laser System

Autor: B. V. Rumiantsev, A. V. Pushkin, K. E. Mikheev, F. V. Potemkin

Publikováno v: JETP Letters. 116:683-690

The effect of the length and pressure of an argon gas jet on low-order harmonics (5th, 7th, 9th, and 11th) generation by 4.5-μm femtosecond laser radiation of a Fe:ZnSe laser system has been studied experimentally. It has been shown that an increase

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5df980f18ff75aa338f228111fc4ec32
https://doi.org/10.1134/s0021364022602123

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Study of the Parameters of Laser-Induced Shock Waves for Laser Shock Peening of Silicon

Autor: E. I. Mareev, B V Rumiantsev, Fedor Potemkin

Publikováno v: JETP Letters. 112:739-744

The ranges of energies of femtosecond laser pulses and distances from the focusing point of intense (up to 1013 W/cm2) femtosecond laser radiation to a silicon sample in which phase transitions can be initiated have been determined using the time-res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce71d985c5c640700aa62bd4fdb73ad7
https://doi.org/10.1134/s0021364020230095

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Photoacoustic energy conversion efficiency under femtosecond filamentation in water: dependence on temperature and filamentation regime

Autor: E. I. Mareev, A S Bychkov, B V Rumiantsev, Alexander A. Karabutov, Elena B. Cherepetskaya, Fedor Potemkin, Vladimir A Makarov

Publikováno v: 2020 International Conference Laser Optics (ICLO).

We report a study of the photoacoustic energy conversion efficiency under femtosecond filamentation in water. We characterized the interaction of ultra-short laser pulse with water under different temperatures and filamentation regimes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be8927dc825d86a47d01965db0b1fd2c
https://doi.org/10.1109/iclo48556.2020.9285414

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Photoacoustic and optical imaging of the femtosecond filament in water

Autor: A. A. Karabutov, Elena B. Cherepetskaya, Vladimir A Makarov, B V Rumiantsev, E. I. Mareev, Fedor Potemkin, A S Bychkov

Publikováno v: Nonlinear Optics and Applications XI.

We report on a new experimental technique aimed to investigate femtosecond filamentation process in transparent condensed dielectrics. The proposed method is based on a highly resolved shadow photography and wideband (about 100MHz) photoacoustic imag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30ffb7f0017063d99571136bf5c0fdac
https://doi.org/10.1117/12.2520987

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Three-dimensional hybrid optoacoustic imaging of the laser-induced plasma and deposited energy density under optical breakdown in water

Autor: Vladimir A Makarov, Elena B. Cherepetskaya, Fedor Potemkin, E. I. Mareev, B V Rumiantsev, A S Bychkov, Alexander A. Karabutov

Publikováno v: Applied Physics Letters. 118:011109

We report on a hybrid optoacoustic method aimed to retrieve the three-dimensional spatial distributions of the plasma electron density and the deposited energy density in the region of plasma formation under optical breakdown in condensed medium. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a28c45d37862a18fe123c09f8620c5b0
https://doi.org/10.1063/5.0032513

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A comprehensive approach to the characterization of the deposited energy density during laser–matter interactions in liquids and solids

Autor: B V Rumiantsev, Fedor Potemkin, E. A. Migal, Elena B. Cherepetskaya, Vladimir A Makarov, A. A. Karabutov, A S Bychkov, E. I. Mareev

Publikováno v: Measurement Science and Technology. 31:085204

We present a novel approach to the characterization of ultrafast laser–matter interaction processes in solids and liquids under extreme conditions of microplasma generation. Through the combination of three-dimensional propagation imaging, absorpti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::643e4981f43176980cde3708146bc758
https://doi.org/10.1088/1361-6501/ab808b

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Two-dimensional photoacoustic imaging of femtosecond filament in water

Autor: Vladimir A Makarov, A S Bychkov, Alexander A. Karabutov, Elena B. Cherepetskaya, Fedor Potemkin, E. I. Mareev, B V Rumiantsev

Publikováno v: 2018 International Conference Laser Optics (ICLO).

We report a first-of-its-kind optoacoustic tomography of femtoseconds filament in water. Using wide-band (about 100 MHz) piezoelectric detector and back-projection reconstruction technique a filament profile was retrieved. Obtained pressure distribut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ec11efb1ffd8fe9c4ffd8c2d1eb331e
https://doi.org/10.1109/lo.2018.8435247

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