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Multi-photon molecular tagging velocimetry with femtosecond excitation (FemtoMTV)

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Abstract

We present results for first molecular tagging velocimetry (MTV) measurements in water under resonant femtosecond excitation/emission process of a phosphorescent supramolecule. Both two-photon and three-photon absorption processes are examined, and the feasibility of measurements is demonstrated by single component velocimetry in a simple jet flow. The new capabilities enabled by FemtoMTV include elimination of the need for short wavelength UV excitation source and UV optical access in flow facilities, and potential for high rep-rate flow imaging.

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Acknowledgments

This work was supported by the Air Force Office of Scientific Research, Grant number FA9550-13-1-0034 (Drs. Enrique Parra and Douglas Smith, Program Managers).

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Authors and Affiliations

  1. Department of Mechanical Engineering, Michigan State University, East Lansing, MI, 48824, USA

    Shahram Pouya & Manoochehr Koochesfahani

  2. Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA

    Alexander Van Rhijn & Marcos Dantus

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  1. Shahram Pouya
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  2. Alexander Van Rhijn
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  3. Marcos Dantus
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  4. Manoochehr Koochesfahani
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Correspondence to Manoochehr Koochesfahani.

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Pouya, S., Van Rhijn, A., Dantus, M. et al. Multi-photon molecular tagging velocimetry with femtosecond excitation (FemtoMTV). Exp Fluids 55, 1791 (2014). https://doi.org/10.1007/s00348-014-1791-8

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  • DOI: https://doi.org/10.1007/s00348-014-1791-8

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