For the first time the results of femtosecond laser spectroscopy of the vibration and rotational motion of o-dichlorobenzene molecules at room temperature based on the nonresonant excitation by two impulse signals of 30 fs with orthogonal plane polarization are presented. The time-resolved signal of the optical responses of the molecular motion is based on the registration of the optical Kerr effect (OKE). It was shown that the variation of the delay between the excitation pulses and their relative efficiency allows to manage the range of OKE signal response and to carry out the selective spectroscopy of the molecular motion.
поляризационная времяразрешенная спектроскопия, двухимпульсное нерезонансное возбуждение, о-дихлорбензол, молекулярное движение, оптический эффект Керра, time-resolved polarization spectroscopy, double-pulse nonresonant excitation, o-dichlorobenzene, molecular motion, optical Kerr effect
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