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Ultrafast time resolved vibrational spectroscopy in liquid systems

G. Seifert, Marius Hofmann, Kai Weidlich, H. Graener

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Abstract

The ultrafast dynamics of small molecules in the liquid phase can successfully be studied tracing the relaxation pathways of vibrational excess energy. Two complementing experimental techniques, picosecond IR double resonance spectroscopy and time resolved incoherent Anti‐Stokes Raman spectroscopy, are very powerful tools for such studies. The capabilities of investigations combining these methods are discussed on the example of new experimental data on liquid dichloromethane (CH2Cl2).

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What this paper is about

The ultrafast dynamics of small molecules in the liquid phase can successfully be studied tracing the relaxation pathways of vibrational excess energy. Two complementing experimental techniques, picosecond IR double resonance spectroscopy and time resolved incoherent Anti‐Stokes Raman spectroscopy, are very powerful tools for such studies. The capabilities of investigations combining these methods are discussed on the example of new experimental data on liquid dichloromethane (CH2Cl2).

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Available abstract

The ultrafast dynamics of small molecules in the liquid phase can successfully be studied tracing the relaxation pathways of vibrational excess energy. Two complementing experimental techniques, picosecond IR double resonance spectroscopy and time resolved incoherent Anti‐Stokes Raman spectroscopy, are very powerful tools for such studies. The capabilities of investigations combining these methods are discussed on the example of new experimental data on liquid dichloromethane (CH2Cl2).

Key concepts: Ultrashort pulse, Picosecond, Spectroscopy, Vibrational energy relaxation, Raman spectroscopy, Relaxation (psychology), Materials science, Chemical physics

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