Your search for "Irina Bocharova" returned 5 results

It was found out that benzotiazole shows inhibitive properties for copper pitting corrosion at investigated hydrocarbonate- chloride systems at both room and elevated temperature. Simultaneously it was obtained concentration range for using the present inhibitor for full copper pitting corrosion suppression caused by Cl- - ions.

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We present the first experimental observation of dynamic field-free orientation of a heteronuclear molecule (CO) induced by intense two color (800 and 400 nm) femtosecond laser pulses. We have used the two color pulse as pump to orient the molecules and a more intense 800 nm pulse as probe to measure the angular distributions. In addition to dynamic alignment seen in time dependence of <cos²θ>, we observe clear orientation in <cosθ>traces, which revives with the rotational period and can be reversed by changing the relative phase of the two colors. We studied the dependence of degree of orientation on the pump pulse intensity, and compared the results with theoretical calculations.

We study electron recollision processes induced in D₂ by the nonlinear interaction with 800 nm few-cycle laser pulses. We show that sequential double ionization is suppressed at intensities below 2 × 10¹⁴ W cm⁻², and the inelastic rescattering processes (electronic excitation and double ionization) become dominant and can be investigated as a function of intensity and ellipticity. At 1 × 10¹⁴ W cm⁻², the D⁺ kinetic energy spectrum arises from recollision-induced electronic excitation (D₂⁺→D⁺+D) and is explained by the contributions of two dissociative excited electronic states of D₂⁺ (²Σ_u⁺ and ²Π_u).

We studied laser-induced Coulomb explosion of CO₂ by full triple-coincidence momentum resolved detection of resulting ion fragments. From the coincidence momentum data we can reconstruct molecular geometry immediately before explosion. We observe the dynamics of Coulomb explosion by comparing reconstructed CO₂ geometries for different Ti:Sapphire laser pulse durations (at the same intensity) ranging from few cycles (7 fs) to 200 fs. We conclude that for longer pulse durations (≥100 fs) Coulomb explosion proceeds through the enhanced ionization mechanism taking place at the critical O-O distance of 8 a.u., similarly to well known charge-resonance enhanced ionization (CREI) in H₂.