Femtosecond CARS on organic molecules

ORAL

Abstract

Quantum coherence dynamics on vibrational transitions in organic molecules is studied by means of femtosecond Coherent Anti-Stokes Raman Scattering (CARS) technique. CARS signal profiles for high-frequency Raman transitions in methanol and ethanol, as representative simple organic substances, are obtained. The detailed, good-visibility profiles, spanning six decades in signal magnitude, show clear low-frequency oscillations, attributed to quantum beats, and make it possible to extract decoherence time constants. Non-trivial dependence of these constants on methanol/ethanol concentration in water solution is observed. Coherent response from a saturated solution of dipicolinic acid, which has much more complex molecular structure, is also demonstrated.

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Authors

  • Dmitry Pestov

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004

  • Kevin Morris

    Stephen F. Austin State University, Texas A\&M University-Commerce, University of Texas at Arlington, Texas A\&M University, University of North Texas, Dept. of Physics, University of Maryland, College Park, Texas A\&M-Commerce, Mississippi State University, Department of Physics and Institute for Quantum Studies, Texas A\&M University, Texas Tech University, Dept. of Materials Science, University of North Texas, Dept. of Chemistry, University of North Texas, Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004