Zobrazeno 1 - 10
of 13
pro vyhledávání: '"S V Pigul'skii"'
Autor:
V. B. Laptev, S. V. Pigul’skii
Publikováno v:
High Energy Chemistry. 52:236-239
Infrared laser conversion of chlorodifluoromethane (CF2HCl) enriched in 13C to 31%, to dibromodifluoromethane (CF2Br2) with the same enrichment has been studied. Optimum conditions have been found, and effective laser synthesis of macroscopic amounts
Autor:
V. B. Laptev, Aleksandr A. Makarov, S. V. Pigul’skii, Sergei V Chekalin, V. O. Kompanets, Evgenii A Ryabov
Publikováno v:
Quantum Electronics. 43:320-325
This paper presents an overview of early studies and new experimental data on the effect of near-IR (0.8 - 1.8 mm) and mid-IR (3.3 - 5.8 mm) intense femtosecond (130 - 350 fs) laser pulses on polyatomic molecules in the gas phase and on the surface o
Autor:
V. O. Kompanets, S. V. Pigul’skii, Evgeny A. Ryabov, Sergey V. Chekalin, N. V. Chekalin, Alexander Makarov, V. B. Laptev
Publikováno v:
Russian Journal of Physical Chemistry A. 87:794-799
The possibility of using one method of femtosecond laser spectroscopy, IR pump-probe, is considered for analyzing the molecular composition of gas. The measured intramolecular relaxation time of the vibrational energy is proposed as an individual cha
Publikováno v:
High Energy Chemistry. 45:335-341
The formation mechanism of the selectivity of IR laser isomerization induced by vibrational multiphoton excitation is considered. The effective and highly selective isomerization of perfluorodimethyl ketene (CF3)2C=C=O into perfluoromethacrylic acid
Autor:
V. N. Lokhman, N. D. D. Ogurok, S. A. Klimin, Evgeny A. Ryabov, V. B. Laptev, S. V. Pigul’skii, V. M. Apatin
Publikováno v:
High Energy Chemistry. 42:409-417
The one-photon IR excitation and subsequent UV dissociation of ammonia molecules selective with respect to nitrogen isotopes were studied. The selectivity of vibrational excitation is achieved by tuning CO2 laser radiation to resonance with 14NH3 or
Autor:
S. A. Klimin, S. V. Pigul’skii, V. N. Lokhman, Evgeny A. Ryabov, V. M. Apatin, V. B. Laptev, D D Ogurok
Publikováno v:
Quantum Electronics. 38:775-782
The separation of nitrogen isotopes is studied upon successive single-photon IR excitation and UV dissociation of ammonia molecules. The excitation selectivity was provided by tuning a CO2 laser to resonance with 14NH3 molecules [the 9R(30) laser lin
Autor:
Grigorii N Makarov, A. N. Petin, V. M. Apatin, S. V. Pigul’skii, I Rios, A N Belokurov, Evgenii A Ryabov, P Mendoza
Publikováno v:
Quantum Electronics. 36:292-298
The possibility of developing a photochemical setup on the basis of an optically pumped ammonia laser with an intracavity photoreactor is proved. The obtained values of the cavity 'implication' factor γ are comparable with those of intracavity syste
Publikováno v:
High Energy Chemistry. 34:320-325
The feasibility of obtaining highly enriched (13C & 80%) carbon-13 by isotope-selective IR multiphoton dissociation (MPD) of Freon 22 (CF2HCl) molecules in one- and two-stage modes of the process in an apparatus with the intracavity arrangement of th
Autor:
A A Kotov, Yu A Kolesnikov, A P Dyad'kin, Volodymyr Novikov, A I Starodubtsev, A S Razumov, S V Pigul'skii, V. Yu. Baranov
Publikováno v:
Quantum Electronics. 27:596-599
An investigation was made of changes in the dissociation yield of UF6 molecules from pulse to pulse in the radiation field of a pulse-periodic CF4 laser. The energy per pulse was 25 — 130 mJ and the UF6 pressure was 0.3 — 0.6 Torr. The dissociati
Autor:
Sergey V. Chekalin, Vladimir Blank, V.N. Denisov, Evgeny A. Ryabov, Igor A. Perezhogin, Boris A. Kulnitskiy, V. O. Kompanets, K S Kravchuk, S. V. Pigul’skii, V. B. Laptev
Publikováno v:
Laser Physics. 26:066002
This study relates to the formation of carbon and silicon dioxide films that occurs as a result of the decomposition of organic and silicon-containing molecules on the surface of ionic crystals under IR femtosecond laser radiation of moderate intensi