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Sensing Technologies Laboratory

Sensing Technologies Laboratory

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    • Energetic Materials and Solid Rocket Propellants
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Ultrafast Optical Diagnostics


Ultrafast laser diagnostics have many interesting and unique properties.  We utilize ultrafast femtosecond lasers for conducting particle image velocimetry with a single optical access port and ultrafast optical Kerr gates for time-of-flight sectioning.

Ultra-high-speed cameras that operate up to 10 million-frames-per-second can also be used to study the incandescence decay rates of soot, enabling single-camera, single-laser-shot particle sizing in turbulent flames.  We are currently interested in applying this technique to study soot formation in complex turbulent combustion environments.

Selected Publications

  1. Y. Chen, E. Cenker, D. R. Richardson, S. P. Kearney, B. R. Halls, S. A. Skeen, C. R. Shaddix, and D. R. Guildenbecher, “Single-camera, Single-shot, Time-resolved Laser-induced Incandescence Decay Imaging,”  Optics Letters, Vol. 43 (21),  pp.5363-5366, 2018. [https://doi.org/10.1364/OL.43.005363]
  2. M. E. Paciaroni†, Y. Chen†, K. P. Lynch, and D. R. Guildenbecher, “Backscatter Particle Image Velocimetry via Optical Time-of-flight Sectioning (PIVOTS),” Optics Letters, vol. 43, no. 2, pp. 312-315, 2018. [†These Authors Contributed Equally to this Work][https://dx.doi.org/10.1364/OL.43.000312]
  3. M. E. Paciaroni, Y. Chen, K. P. Lynch, and D. R. Guildenbecher, “PIVOTS: A Novel Method of Performing Time Gated Particle Image Velocimetry,” OSA Imaging and Applied Optics Conference: Laser Applications to Chemical, Security and Environmental Analysis, paper LM3C.4, 2018. [Invited Talk]  [https://doi.org/10.1364/LACSEA.2018.LM3C.4]

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