Nonlinear optical methods as applied to the study of tRNA molecule in solution

Speaker: Prof. Andrzej Dobek
Affiliation: Faculty of Physics, Adam Mickiewicz University in Poznań, Poznań, Poland
Link to MS Teamas

A short history of physical research on nonlinear optics and nucleic acid at UAM will be given. The bases of molecular description of optical Kerr effect and light scattering changes in strong optical field will be introduced. Geometry of the measurement setups will be described and the obtained results for different time range of the inducing light pulse will be presented. The conclusions dealing with the application of nonlinear effects as applied to the study of the macromolecules in water solution will be summarized.

Outline of the talk:

• Introduction – some history of nonlinear optical effects.
• Electric polarization
• Kerr low, theory of OKE and its measurement geometry.
• Light scattering changes in strong optical field. Principles of measurements.
• Nucleic acids – some history and why tRNA molecule?
• tRNA conformations in solution.
• Results of OKE and light scattering studies in different time range.
• Conclusions.

Chairman: Prof. Jacek Gapiński

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