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Polarization two-pulse method for analysis of sensing femtosecond signals based on the ultrafast optical Kerr effect

Abstract

A novel molecular polarization spectroscopy method of processing the strengthened femtosecond signals, based on the ultrafast optical Kerr effect, is proposed. The processing of the reference chloroform signal by the novel method at a room temperature is demonstrated. It is shown that due to the manipulation by individual molecular motions through the constructive or destructive interference of corresponding wave packets it is possible to determine directly from the experiment such constants of molecular dynamics as the relaxation times of the coherent vibrations (≈1.5 ps) and orientation anisotropy (≈1.2 ps).

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Correspondence to A. G. Shmelev.

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Original Russian Text © A.G. Shmelev, V.G. Nikiforov, G.M. Safiullin, V.S. Lobkov, V.V. Samartsev, 2010, published in Optica Atmosfery i Okeana.

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Shmelev, A.G., Nikiforov, V.G., Safiullin, G.M. et al. Polarization two-pulse method for analysis of sensing femtosecond signals based on the ultrafast optical Kerr effect. Atmos Ocean Opt 24, 173–180 (2011). https://doi.org/10.1134/S102485601102014X

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Keywords

  • Femtosecond Laser
  • Femtosecond Pulse
  • Vibration Response
  • Optical Kerr Effect
  • Orientation Anisotropy