Oleg Aseev | Ecole Polytechnique Federale de Lausanne (original) (raw)
Uploads
Papers by Oleg Aseev
Chemical Physics Letters, 2013
Triple-resonance vibrational spectroscopy is used to determine the lowest dissociation energy, D ... more Triple-resonance vibrational spectroscopy is used to determine the lowest dissociation energy, D 0 , for the water isotopologue HD 16 O as 41 239.7 ±0.2 cm −1 and to improve D 0 for H 2 16 O to 41 145.92 ±0.12 cm −1 . Ab initio calculations including systematic basis set and electron correlation convergence studies, relativistic and Lamb shift effects as well as corrections beyond the Born-Oppenheimer approximation, agree with the measured values to 1 and 2 cm −1 respectively. The improved treatment of high-order correlation terms is key to this high theoretical accuracy. Predicted values for D 0 for the other five major water isotopologues are expected to be correct within 1 cm −1 .
Mendeleev Communications, 2010
The possibility of detection of paramagnetic particles (NO, OH radical) in a flame by using terah... more The possibility of detection of paramagnetic particles (NO, OH radical) in a flame by using terahertz radiation was shown.
Photochemistry and Photobiology, 2009
Infrared multiphoton absorption and dissociation of chloromethyltrifluorosilane molecules under t... more Infrared multiphoton absorption and dissociation of chloromethyltrifluorosilane molecules under the action of pulsed transversely excited atmospheric pressure CO 2 laser were experimentally studied. Dissociation products were analyzed. The dissociation proceeds via chlorine atom transfer from carbon to silicone. High degrees of silicon isotope separation were achieved. The presence of a-chlorine atom in a silicon organic compound brings about a significant improvement in multiple photon dissociation characteristics and an essential increase in isotopic selectivity.
Combustion Explosion and Shock Waves, 2010
The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the e... more The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the effect of rotation of the polarization plane of terahertz radiation (1–10 THz) in a magnetic field (Faraday effect) was experimentally demonstrated. Experimental data on detection of NO in a cell and OH radicals in an atmospheric-pressure H2/O2/N2 flame using this method are given. The proposed method can be used to study highly scattering media which are opaque in the visible region, for example, dusty or sooty flames.
Chemical Physics Letters, 2013
Triple-resonance vibrational spectroscopy is used to determine the lowest dissociation energy, D ... more Triple-resonance vibrational spectroscopy is used to determine the lowest dissociation energy, D 0 , for the water isotopologue HD 16 O as 41 239.7 ±0.2 cm −1 and to improve D 0 for H 2 16 O to 41 145.92 ±0.12 cm −1 . Ab initio calculations including systematic basis set and electron correlation convergence studies, relativistic and Lamb shift effects as well as corrections beyond the Born-Oppenheimer approximation, agree with the measured values to 1 and 2 cm −1 respectively. The improved treatment of high-order correlation terms is key to this high theoretical accuracy. Predicted values for D 0 for the other five major water isotopologues are expected to be correct within 1 cm −1 .
Mendeleev Communications, 2010
The possibility of detection of paramagnetic particles (NO, OH radical) in a flame by using terah... more The possibility of detection of paramagnetic particles (NO, OH radical) in a flame by using terahertz radiation was shown.
Photochemistry and Photobiology, 2009
Infrared multiphoton absorption and dissociation of chloromethyltrifluorosilane molecules under t... more Infrared multiphoton absorption and dissociation of chloromethyltrifluorosilane molecules under the action of pulsed transversely excited atmospheric pressure CO 2 laser were experimentally studied. Dissociation products were analyzed. The dissociation proceeds via chlorine atom transfer from carbon to silicone. High degrees of silicon isotope separation were achieved. The presence of a-chlorine atom in a silicon organic compound brings about a significant improvement in multiple photon dissociation characteristics and an essential increase in isotopic selectivity.
Combustion Explosion and Shock Waves, 2010
The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the e... more The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the effect of rotation of the polarization plane of terahertz radiation (1–10 THz) in a magnetic field (Faraday effect) was experimentally demonstrated. Experimental data on detection of NO in a cell and OH radicals in an atmospheric-pressure H2/O2/N2 flame using this method are given. The proposed method can be used to study highly scattering media which are opaque in the visible region, for example, dusty or sooty flames.