Femtosecond laser excitation tagging anemometry Patent uri icon


  • An apparatus for the imaging of gaseous fluid motion is disclosed. The apparatus includes a sub-nanosecond pulsed laser. The sub-nanosecond pulsed laser is configured to cause a particle species to fragment and for the recombining fragments subsequently to fluoresce. The apparatus also includes a gaseous fluid comprised of particle species. The apparatus also includes a time gated camera. The time gated camera configured to capture at least one image of the fluorescence from the recombining particle fragment species displaced after a specific time lapse following the laser pulse. Additionally, a fluid velocity can be calculated from a comparison of the image of the displaced particle species to an initial reference position and the time lapse. A Femtosecond Laser Electronic Excitation Tagging (FLEET) method of using the disclosed apparatus is also disclosed.

author list (cited authors)

  • Miles, R. B., Dogariu, A., Michael, J. B., & Edwards, M. R.

complete list of authors

  • Miles, RB||Dogariu, A||Michael, JB||Edwards, MR

publication date

  • January 2018