Dr. Le's research group focuses on advancing laser-based and X-ray diagnostic techniques to investigate carbonaceous materials, including soot, other aerosols and gases both in laboratory settings and in the atmosphere. They have designed and constructed a range of spectroscopic instruments such as Raman scattering, UV–Vis–NIR absorption, incandescence, and fluorescence systems, as well as X-ray photoelectron spectroscopy setups in collaboration with researchers at the MAX IV synchrotron.

Le began her research career in 2013 by pursuing a PhD at the Institut des Sciences Moléculaires d’Orsay (ISMO–CNRS) in France. During this period, she developed and applied optical and laser-based techniques—including online Raman scattering, UV–Vis–NIR absorption spectroscopy, and FTIR spectroscopy—to study the properties of soot particles in low-pressure flames.

After obtaining the PhD in 2017, she was applied and awarded a prestigious Marie Skłodowska-Curie Individual Postdoctoral Fellowship from the European Commission. She carried out her postdoctoral research at the Division of Combustion Physics at Lund University, where she continued to apply online spectroscopic techniques in combustion research. In 2021, she was appointed to a tenure-track position at the university and was promoted to a tenured position at the end of 2025.