Femtosecond laser control of intramolecular vibrations in a liquid |
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Authors: | V G Nikiforov A G Shmelev G M Safiullin V S Lobkov V V Samartsev |
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Institution: | 1.Kazan Physicotechnical Institute, Kazan Scientific Center,Russian Academy of Sciences,Kazan,Russia;2.Kazan Federal University,Kazan,Russia |
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Abstract: | Optical control of coherent intramolecular oscillations in chloroform CHCl3 and dimethyl sulfoxide (CH3)2SO is attained experimentally under normal conditions by means of femtosecond polarization spectroscopy. Nonresonant excitation
of the medium is accomplished by a sequence of two linearly polarized laser pulses. The state of the medium is probed by the
third pulse via the optical Kerr effect. We show that control over the vibrational dynamics of molecules on a sub-picosecond
scale can be achieved by varying the delay between the excitation pulses and their relative intensity. |
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