Search Results - "Garnov, S V"

Super-resolution THz endoscope based on a hollow-core sapphire waveguide and a solid immersion lens by Kucheryavenko, A S, Zhelnov, V A, Melikyants, D G, Chernomyrdin, N V, Lebedev, S P, Bukin, V V, Garnov, S V, Kurlov, V N, Zaytsev, K I, Katyba, G M

“…To address a challenging problem of super-resolution terahertz (THz) endoscopy, in this paper, an antiresonant hollow-core waveguide was coupled with a…”
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Waveform, spectrum, and energy of backward terahertz emission from two-color femtosecond laser induced microplasma by Ushakov, A. A., Panov, N. A., Chizhov, P. A., Shipilo, D. E., Bukin, V. V., Savel'ev, A. B., Garnov, S. V., Kosareva, O. G.

“…We measured the key characteristics of the backward terahertz (THz) emission from a two-color femtosecond laser spark in air: waveform, spectrum, and energy…”
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THz generation by two-color laser air plasma coupled to antiresonance hollow-core sapphire waveguides: THz-wave delivery and angular distribution management by Katyba, G M, Chizhov, P A, Kurlov, V N, Dolganova, I N, Garnov, S V, Zaytsev, K I, Bukin, V V

“…In this paper, hollow-core antiresonance sapphire waveguides were applied to guide the THz radiation emitted by the two-color laser air plasma, as well as to…”
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Ring and unimodal angular-frequency distribution of THz emission from two-color femtosecond plasma spark by Ushakov, A A, Chizhov, P A, Andreeva, V A, Panov, N A, Shipilo, D E, Matoba, M, Nemoto, N, Kanda, N, Konishi, K, Bukin, V V, Kuwata-Gonokami, M, Kosareva, O G, Garnov, S V, Savel'ev, A B

“…We study angular and frequency-angular distributions of the terahertz (THz) emission of the low-frequency region (0.3-3 THz) from a two-color femtosecond…”
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Generation of Rectangular Nanosecond Electromagnetic Pulses with a Picosecond Rise Front by Garnov, S. V., Bulgakova, V. V., Dolmatov, T. V., Ushakov, A. A., Bukin, V. V.

“…A method for generation of ultra-wideband electromagnetic pulses with a nanosecond length and a picosecond rise time has been proposed and studied. A horn…”
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Photodetection performance of TiS3 nanoribbons studied by optical pump: terahertz probe spectroscopy by Paukov, M I, Bulgakova, V V, Goncharov, Y G, Mishra, P, Ushakov, A A, Syuy, A V, Arsenin, A A, Volkov, V, Zaytsev, K I, Garnov, S V, Burdanova, M G

“…Titanium trisulfide (TiS3) is an important representative of nanomaterials, which are regarded as significant candidates for nanoscale optoelectronics. Due to…”
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Powerful Lasers for High Energy Density Physics by Garanin, S. G., Garnov, S. V., Sergeev, A. M., Khazanov, E. A.

“…This paper deals with the principal results of studies performed by scientists of academic institutes and nuclear industry enterprises in the field of laser…”
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High-Frequency (MHz) Ignition of Commercial Flash Lamps for Solid State Lasers by Valshin, A. M., Garnov, S. V., Belkov, S. A., Pershin, S. M.

“…A multiple (from 20 to 3 kV) decrease in the ignition threshold of commercial flash lamps for solid-state lasers under HF pumping at a megahertz frequency has…”
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Laser ablation and micropatterning of thin TiN coatings by Kononenko, T.V., Garnov, S.V., Pimenov, S.M., Konov, V.I., Romano, V., Borsos, B., Weber, H.P.

“…Laser ablation of thin TiN films deposited on steel substrates has been studied under wide-range variation of irradiation conditions (pulsewidth, wavelength,…”
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Generation of Terahertz Radiation in Boron-Doped Diamond by Kononenko, V. V., Zavedeev, E. V., Dezhkina, M. A., Bulgakova, V. V., Komlenok, M. S., Kononenko, T. V., Bukin, V. V., Konov, V. I., Garnov, S. V., Khomich, A. A.

“…For the first time, the ability of semiconducting diamond to convert near-IR laser radiation into terahertz radiation has been demonstrated. A set of…”
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Ultra-wideband Electric Field Measurement System using CdTe-based Dielectric Fiber Tip Sensor by Dolmatov, T. V., Bukin, V. V., Garnov, S. V., Gerasimchuk, O. A., Popovskiy, Y. Y., Neustruev, V. V., Sakharov, K. Y., Miheev, O. V.

“…A relatively simple fiber sensor system for high-power electromagnetic field measurements is presented. The system utilizes an all-dielectric fiber tip sensor…”
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Backward Terahertz Radiation from a Two-Color Femtosecond Laser Filament by Ushakov, A. A., Matoba, M., Nemoto, N., Kanda, N., Konishi, K., Chizhov, P. A., Panov, N. A., Shipilo, D. E., Bukin, V. V., Kuwata-Gonokami, M., Yumoto, J., Kosareva, O. G., Garnov, S. V., Savel’ev, A. B.

“…We report the first experimental observation of backward terahertz emission from the two-color laser induced plasma filament in air. The ratio of measured…”
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A β Ti–20Nb–10Ta–5Zr Alloy with the Surface Structured on the Micro- and Nanoscale by Sevostyanov, M. A., Baikin, A. S., Kaplan, M. A., Kolmakov, A. G., Gudkov, S. V., Rebezov, M. B., Garnov, S. V.

“…This alloy is shown to be homogeneous (Ti 65%, Nb 20%, Ta 10%, Zr 5%). A change in the elemental composition is observed only in the layer close to the surface…”
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A Direct Experiment on the Passage of Ultra-Wideband Pulses of Subnanosecond Duration in the Earth’s Atmosphere by Garnov, S. V., Selemir, V. D., Bukin, V. V., Gorbenko, D. A., Dolmatov, T. V., Zhdanov, V. S., Efanov, M. V., Lebedev, E. F., Ostashev, V. E., Semenov, A. V., Ulianov, A. V., Fedorov, V. M., Shurupov, M. A.

“…The results of the first direct experiments on the passage of pulses of ultra-wideband radiation of subnanosecond duration in the Earth’s atmosphere at a…”
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Control of Spatial Distribution of Broadband Terahertz Radiation Using Fresnel Zone Plates by Ushakov, A. A., Chizhov, P. A., Bukin, V. V., Garnov, S. V.

“…The controllability of the directional pattern of separate frequency components of the broadband terahertz radiation spectrum by introducing Fresnel zone…”
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Generation of Terahertz Radiation in Gas Media with Variable Structure when Focusing Two-Color Femtosecond Laser Pulses by Chizhov, P. A., Ushakov, A. A., Bukin, V. V., Garnov, S. V.

“…The possibility of modulating the power of terahertz radiation generated in the laser plasma produced when focusing two-color femtosecond laser pulses in air,…”
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Modulation of two-color laser-induced filament terahertz emission by effective length variation by Chizhov, P.A., Ushakov, A.A., Bukin, V.V., Garnov, S.V.

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Photoconductivity and photoemission studies of diamond irradiated by ultrashort VUV pulses by Martin, P., Gaudin, J., Geoffroy, G., Guizard, S., Petite, G., Klimentov, S.M., Garnov, S.V., Pivovarov, P.A., Carr, B., Belsky, A.

“…We investigated relaxation of free charge carriers in pure crystalline diamond exposed to VUV irradiation of high order harmonics of femtosecond Ti:Sa laser in…”
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3D terahertz beam profiling from two color laser induced plasma with different focusing by Ushakov, A.A., Matoba, M., Nemoto, N., Kanda, N., Konishi, K., Andreeva, V.A., Panov, N.A., Shipilo, D.E., Chizhov, P.A., Bukin, V.V., Kuwata-Gonokami, M., Yumoto, J., Kosareva, O.G., Garnov, S.V., Savel’ev, A.B.

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Deeply subwavelength terahertz solid immersion microscopy using rutile optics by Zhelnov, V.A., Chernomyrdin, N.V., Katyba, G.M., Gavdush, A.A., Bukin, V.V., Garnov, S.V., Spektor, I.E., Kurlov, V.N., Skorobogatiy, M., Zaytsev, K.I.

“…A rutile crystal is used to machine a solid immersion lens, boasting a very high refractive index of ~10 in the terahertz range. We further show experimentally…”
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