Search Results - "Koshelev, M.A."

Recent results on THz gyrotron-based molecular spectroscopy by Golubiatnikov, G.Yu, Koshelev, M.A., Tsvetkov, A.I., Fokin, A.P., Glyavin, M.Yu, Tretyakov, M.Yu

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Reaching high sensitivity of radio-acoustic spectroscopy using “strong microwaves” by Koshelev, M.A., Vilkov, I.N., Tsvetkov, A.I., Glyavin, M.Yu, Tretyakov, M.Yu

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Accurate broadband THz molecular spectroscopy by Krupnov, A.F., Belov, S.P., Tretyakov, M.Yu, Golubiatnikov, G.Yu, Parshin, V.V., Koshelev, M.A., Serov, E.A., Vilkov, I.N., Makarov, D.S., Bubnov, G.M., Leonov, I.I., Chernova, A.I., Andriyanov, A.F., Shkaev, A.P.

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Thermodynamic functions of germane isotopologues AGeH4 (A = 70, 72, 73, 74, 76) calculated from high-resolution IR spectra by Velmuzhova, I.A., Koshelev, M.A., Velmuzhov, A.P., Ulenikov, O.N., Gromova, O.V.

“…[Display omitted] •The mass of the germanium isotope affects the thermodynamic functions of germane.•The greater mass of the germanium atom, the greater heat…”
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Continuum absorption in pure N 2 gas and in its mixture with Ar by Serov, E.A., Galanina, T.A., Koroleva, A.O., Makarov, D.S., Amerkhanov, I.S., Koshelev, M.A., Tretyakov, M.Yu, Chistikov, D.N., Finenko, A.A., Vigasin, A.A.

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Temperature behavior of collisional parameters of oxygen fine-structure lines: O2-O2 case by Koshelev, M.A., Vilkov, I.N., Galanina, T.A., Serov, E.A., Makarov, D.S., Tretyakov, M.Yu

“…•The first study of the effect of temperature on the speed-dependence effect for oxygen fine-structure lines.•Significantly different temperature behavior of…”
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High resolution FTIR spectroscopy of germane: First study of 76GeH4 in the region of Tetrad of the strongly interacting ν 1 + ν 2 , ν 1 + ν 4 , ν 2 + ν 3 and ν 3 + ν 4 ro–vibrational bands by Ulenikov, O.N., Gromova, O.V., Bekhtereva, E.S., Nikolaeva, N.I., Velmuzhova, I.A., Koshelev, M.A.

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Molecular oxygen fine structure with sub-kHz accuracy by Koshelev, M.A., Golubiatnikov, G.Yu, Vilkov, I.N., Tretyakov, M.Yu

“…•Oxygen fine-structure lines up to N = 43 are investigated by means of two spectrometers.•Measured frequencies have several times higher accuracy than previous…”
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Collisional broadening and shifting of the 211-202 transition of H216O, H217O, H218O by atmosphere gases by Koshelev, M.A.

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Collisional broadening and shifting of the 2 11-2 02 transition of H 2 16O, H 2 17O, H 2 18O by atmosphere gases by Koshelev, M.A.

“…Broadening and shifting of the 2 11–2 02 transition of H 2 16O, H 2 17O, H 2 18O by pressure of water, nitrogen and oxygen were precisely measured at room…”
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Line-shape parameters of the oxygen first rotational triplet by Koshelev, M.A., Vilkov, I.N., Golubiatnikov, G.Yu, Sekacheva, A.Yu, Tretyakov, M.Yu

“…•First study of the beyond-Voigt line shape of the first rotational triplet of oxygen.•Two fundamentally different spectrometers are used.•Speed dependent…”
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First high-resolution analysis of the 3 ν 4 , ν 2 + 2 ν 4 and 2 ν 2 + ν 4 bands of 76 GeH 4 by Ulenikov, O.N., Gromova, O.V., Bekhtereva, E.S., Raspopova, N.I., Velmuzhova, I.A., Koshelev, M.A., Sennikov, P.G.

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First high-resolution analysis of the 3ν4,ν2+2ν4 and 2ν2+ν4 bands of 76GeH4 by Ulenikov, O.N., Gromova, O.V., Bekhtereva, E.S., Raspopova, N.I., Velmuzhova, I.A., Koshelev, M.A., Sennikov, P.G.

“…•The 3v4/v2+2v4/2v2+v4 interacting states of GeH4.•Resonance interactions in spherical top molecules.•Determination of spectroscopic parameters. The infrared…”
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Experimental investigation of gyrotron radiation frequency multiplication by Fokin, A.P., Glyavin, M.Yu, Golubiatnikov, G.Yu, Koshelev, M.A., Maremyanin, K.V., Morozov, S.V., Rozental, R.M., Rumyantsev, V.V., Tani, M., Tatematsu, Y., Tsvetkov, A.I., Zotova, I.V.

“…We present two sets of experiments on the multiplication of gyrotron radiation frequency. The first one utilizes the second-order susceptibility of the crystal…”
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Thermodynamic functions of germane isotopologues GeH4 (A = 70, 72, 73, 74, 76) calculated from high-resolution IR spectra by Velmuzhova, I.A., Koshelev, M.A., Velmuzhov, A.P., Ulenikov, O.N., Gromova, O.V.

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Speed-dependent broadening of the O 2 fine-structure lines by Koshelev, M.A., Vilkov, I.N., Makarov, D.S., Tretyakov, M.Yu, Rosenkranz, P.W.

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Water vapor line profile at 183-GHz: Temperature dependence of broadening, shifting, and speed-dependent shape parameters by Koshelev, M.A., Vilkov, I.N., Makarov, D.S., Tretyakov, M.Yu, Vispoel, B., Gamache, R.R., Cimini, D., Romano, F., Rosenkranz, P.W.

“…•First measurement of SD ЫВ broadening and shifting of the 183-GHz water line for self- and air-broadening, and their temperature dependences.•MCRB…”
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Continuum absorption in pure N2 gas and in its mixture with Ar by Serov, E.A., Galanina, T.A., Koroleva, A.O., Makarov, D.S., Amerkhanov, I.S., Koshelev, M.A., Tretyakov, M.Yu, Chistikov, D.N., Finenko, A.A., Vigasin, A.A.

“…The N2−N2and N2−Arcontinuum absorption spectra are calculated using the classical trajectory-based simulation (CTS). The spectra obtained are validated by new…”
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GLOBAL ANALYSIS OF 24 ROVIBRATIONAL BANDS OF THE OCTAD OF THE [sup.76]Ge[H.sub.4] MOLECULE by Raspopova, N.I, Gromova, O.V, Bekhtereva, E.S, Koshelev, M.A, Sennikov, P.G

“…A global fitting method has been developed for spherical top molecules. The octad of the GeH4 molecule comprising 24 interacting states has been investigated…”
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Molecular gas spectroscopy using radioacoustic detection and high-power coherent subterahertz radiation sources by Koshelev, M.A., Tsvetkov, A.I., Morozkin, M.V., Glyavin, M.Yu, Tretyakov, M.Yu

“…[Display omitted] •“Power” approach of improving the sensitivity of the radio-acoustic detection method was studied.•Sensitivity of the spectrometer was…”
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