Rate My Professor Christopher Limbach

Christopher Limbach is an Assistant Professor in the Department of Aerospace Engineering at the University of Michigan, appointed in 2022, and founding director of the Photonic Sensing and Flow Interaction Laboratory. Previously, he served as an Assistant Professor at Texas A&M University from 2018 to 2022. He received his Ph.D. in Mechanical and Aerospace Engineering from Princeton University in 2015, along with B.S. degrees in Engineering Physics and Astronomy from the University of Arizona in 2009. Limbach's academic career has been marked by significant contributions to laser-based diagnostics and propulsion technologies.

His research centers on developing advanced laser and optical measurement techniques for hypersonic flows, turbulent wall-bounded flows, high-temperature non-equilibrium aerothermodynamics, and plasmadynamics. Key methods include low-power linear techniques such as absorption spectroscopy and interferometry, combined with ultrafast approaches like femtosecond laser electronic excitation tagging (FLEET), hybrid femtosecond-picosecond coherent anti-Stokes Raman scattering (CARS), and two-photon laser-induced fluorescence (TALIF). Limbach also investigates laser applications for space propulsion and power, pioneering concepts for photonic propulsion, beam propulsion, and laser ablation that utilize combined laser and atomic beams to mitigate beam spreading. Notable recent projects include leading a DARPA Young Faculty Award-funded initiative in 2025, a NASA supersonic LIDAR project in 2023, and Air Force Office of Scientific Research grants for propulsion advancements. He has earned the NASA Innovative Advanced Concepts Fellowship in 2018 and 2019, the Nakayama Medal in 2017, the National Defense Science and Engineering Graduate Fellowship from 2012 to 2015, the McGraw Teaching Fellow award in 2013, and the Crocco Teaching Prize in 2012. Limbach is a member of the AIAA Plasmadynamics and Lasers Technical Committee. His influential publications include 'Hypersonic FLEET velocimetry and uncertainty characterization in a tripped boundary layer' (2024), 'Wall-normal FLEET Velocimetry in a Canonical Hypersonic Inlet' (2023), and 'High-speed planar laser-induced fluorescence imaging of nitric oxide in the near wake of a hypersonic cone' (2023), with over 888 citations reflecting his impact on hypersonic aerodynamics, aero-optics, and beam propulsion.