Multi-photon Molecular Tagging Velocimetry with Femtosecond Excitation (FemtoMTV)
ORAL
Abstract
We report results from first MTV measurements in water under nonlinear resonant femtosecond excitation 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.
*This work was supported by the Air Force Office of Scientific Research, Grant number FA9550-13-1-0034.
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