People
REN Wei 任偉
Associate Professor
renwei@mae.cuhk.edu.hk
TEL: 852 - 3943 9486
Room 209, William M.W. Mong Engineering Building
https://www.rengroup.mae.cuhk.edu.hk/

Prof. Wei Ren received his B.S. and M.S. degree from Tsinghua University in 2006 and 2008, respectively. He received his Ph.D. degree in Mechanical Engineering under the advisory of Prof. Ronald K. Hanson at Stanford University in 2013. After the postdoctoral research in Prof. Frank K. Tittel’s group at Rice University, he joined the Department of Mechanical and Automation Engineering at CUHK in August 2014. His research focuses on the development of new technologies and the understanding of basic principles in the areas of laser diagnostics, gas sensing, combustion and propulsion, enery and fuels. He is currently the co-editor of Springer journal Applied Physics B, the senior member of Optica, and the recipient of the Excellent Young Scientists Fund of NSFC.

Research Interests
  • Laser diagnostics
  • Sensors and actuators
  • Chemical sensing
  • Combustion and propulsion
Current Projects
  • Mid-infrared photoacoustic and photothermal spectroscopy
  • Combustion diagnostics using frequency comb spectroscopy
  • Chemical kinetics of oxygenated and fossil fuels
Teaching by Years
2021/2022
MAEG5775 Energy & Environment
MAEG4080 Introduction to Combustion
EEEN2020 Renewable Energy Technologies
2020/2021
MAEG5150 Advanced Heat Transfer and Fluid Mechanics
MAEG5775 Energy & Environment
MAEG4080 Introduction to Combustion
MAEG3030 Fluid Mechanics
2019/2020
MAEG4080 Introduction to Combustion
MAEG3030 Fluid Mechanics
GENA1113 Student-oriented Teaching and Seminar
2018/2019
EEEN2020 Renewable Energy Technologies
MAEG4080 Introduction to Combustion
MAEG3030 Fluid Mechanics
Publications

Selected Journal Papers

  1. “Dual-comb photothermal spectroscopy”, Q. Wang, Z. Wang, H. Zhang, S. Jiang, Y. Wang, W. Jin, and W. Ren, Nature Communications, 13, 2181 (2022). (link)
  2. “Trace gas detection in a hollow-core antiresonant fiber with heterodyne phase-sensitive dispersion spectroscopy”, M. Hu, A. Ventura, J. Hayashi, F. Poletti, S. Yao, and W. Ren, Sensors and Actuators B, 363, 131774 (2022). (link)
  3. “High-temperature ammonia detection using heterodyne phase-sensitive dispersion spectroscopy at 9.06 μm”, K. Duan, Y. Ji, M. Hu, Z. Lu, S. Yao, and W. Ren, Fuel, 325, 124852 (2022). (link)
  4. “Laser sensors for energy systems and process industries: Perspectives and directions”, A. Farooq, A. Alquaity, M. Raza, E. F. Nasir, S. Yao, and W. Ren, Progress in Energy and Combustion Science, 91, 10097 (2022). (link)
  5. “Wavelength-modulation dispersion spectroscopy of NO with heterodyne phase-sensitive detection”, M. Hu and W. Ren, Optics Letters, 47(11), 2899-2902 (2022). (link)
  6. “High-temperature dual-species (CO/NH3) detection using calibration-free scanned-wavelength-modulation spectroscopy at 2.3 μm”, M. Raza, L. Ma, S. Yao, L. Chen, and W. Ren, Fuel, 305, 121591 (2021). (link)
  7. “Heterodyne interferometric photothermal spectroscopy for gas detection in a hollow-core fiber”, C. Yao, S. Gao, Y. Wang, W. Jin, and W. Ren, Sensors and Actuators B, 346, 130528 (2021). (link)
  8. “Accurate temperature prediction with small absorption spectral data enabled by transfer machine learning”, Y. Yi, K. Duan, K. Ni, R. Li, and W. Ren, Optics Express, 29(25), 40699-40709 (2021). (link)
  9. “Mid-infrared cavity-enhanced absorption sensor for ppb-level N2O detection using an injection-current-modulated quantum cascade laser”, M. Yang, Z. Wang, Q. Nie, K. Ni, and W. Ren, Optics Express, 29(25), 41634-41642 (2021). (link)
  10. “Water catalysis of the reaction of methanol with OH radical in the atmosphere is negligible”, J. Wu, L. G. Gao, Z. Varga, X. Xu, W. Ren, and D. G. Truhlar, Angewandte Chemie – International Edition, 59, 10826-10830 (2020). (link)
  11. “Anharmonic kinetics of the cyclopentane reaction with hydroxyl radical”, J. Wu, L. Gao, W. Ren, D. Truhlar, Chemical Science – The Royal Society of Chemistry, 11, 2511-2523 (2020). (link)
  12. “Sub-ppm CO detection in a sub-meter-long hollow-core negative curvature fiber using absorption spectroscopy at 2.3 µm”, C. Yao, L. Xiao, S. Gao, Y. Wang, P. Wang, R. Kan, W. Jin, and W. Ren, Sensors and Actuators B, 305, 127238 (2020). (link)
  13. “Active modulation of intracavity laser intensity with Pound-Drever-Hall locking for photoacoustic spectroscopy”, Z. Wang, H. W, Y. Li, R. Kan, and W. Ren, Optics Letters, 45(5), 1148-1151 (2020). (link)
  14. “Exploring the pyrolysis chemistry of prototype aromatic ester phenyl formate: Reaction pathways, thermodynamics and kinetics”, H. Ning, J. Wu, L. Ma, and W. Ren, Combustion and Flame, 211, 337-346 (2020). (link)
  15. “Cascaded group-additivity ONIOM: A new method to approach CCSD(T)/CBS energies of large aliphatic hydrocarbons”, J. Wu, H. Ning, L. Ma, P. Zhang, and W. Ren, Combustion and Flame, 201, 31-43 (2019). (link)
  16. “Mid-infrared heterodyne phase-sensitive dispersion spectroscopy in flame measurements”, L. Ma, Z. Wang, K. P. Cheong, H. Ning, and W. Ren, Proceedings of the Combustion Institute, 37(2), 1329-1336 (2019). (link)
  17. “Ultra-sensitive photoacoustic detection in a high-finesse cavity with Pound-Drever-Hall locking”, Z. Wang, Q. Wang, W. Zhang, H. Wei, Y. Li, and W. Ren, Optics Letters, 44(8), 1924-1927 (2019). (link)
  18. “Photothermal CO detection in a hollow-core negative curvature fiber”, C. Yao, Q. Wang, Y. Lin, W. Jin, L. Xiao, S. Gao, Y. Wang, P. Wang, and W. Ren, Optics Letters, 44(16), 4048-4051 (2019). (link)