Femtosecond coherent Raman spectroscopy

Wolfgang Kiefer; T. Chen; M. Heid; A. Materny; M. Schmitt; T. Siebert; A. Vierheilig

doi:10.1117/12.468878

30 May 2002 Femtosecond coherent Raman spectroscopy

Wolfgang Kiefer, T. Chen, M. Heid, A. Materny, M. Schmitt, T. Siebert, A. Vierheilig

Proceedings Volume 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine; (2002) https://doi.org/10.1117/12.468878
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

Femtosecond time-resolved CARS spectroscopy is applied in order to prepare and monitor coherent states of different samples mainly in its electronic ground but also excited states. The time evolution prepared by such methods give information on the dynamics of molecular vibrations. In a first example, the fs CARS transients of iodine are investigated. Depending on the timing of the laser pulses different dynamics are reflected in the transient CARS signal. Second, we report on selective excitation of the vibrational modes in the electronic ground state of polymers of diacetylene by means of a femtosecond time-resolved CARS scheme. Control is achieved by varying the timing and the phase shape of the exciting laser pulses. Finally the electronic ground state dynamics of biologically relevant porphyrine molecules are studied with transient CARS spectroscopy.

Citation Download Citation

Wolfgang Kiefer, T. Chen, M. Heid, A. Materny, M. Schmitt, T. Siebert, and A. Vierheilig "Femtosecond coherent Raman spectroscopy", Proc. SPIE 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine, (30 May 2002); https://doi.org/10.1117/12.468878

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