Cun-feng Cheng
Professor
University of Science and Technology of China
Hefei, Anhui 230027, China
Email: cfcheng@ustc.tsg211.com
Research Interests
Precision spectroscopy methods and the precision spectroscopy of molecules: tests of the fundamental physics or chemistry with high accuracy, searching for new physics, determination of fundamental constants, and quantum metrology. The main research content currently underway:
1.Precision spectroscopy of molecular hydrogen: testing quantum chemistry theory, determining proton / electron mass ratio and proton radius；
2.Precision spectroscopy of polar molecules: testing varying constant；
3.Development of techniques such as low-temperature collisions and molecular cooling in order to improve the precision of molecular spectroscopy measurement.
Degrees attained
| Ph.D | 2012 | University of Science and Technology of China | Department of Chemical Physics |
|---|---|---|---|
| B.S. | 2006 | University of Science and Technology of China | Department of Chemical Physics |
Employment history
| 2021 - Present | Professor | University of Science and Technology of China |
|---|---|---|
| 2020 - 2021 | Scientist | University of Science and Technology of China |
| 2018 - 2019 | Associate scientist | University of Science and Technology of China |
| 2014 - 2018 | Postdoctoral fellow | Vrije Universiteit Amsterdam |
| 2012 - 2014 | Postdoctoral fellow | University of Science and Technology of China |
Visiting Experience
| 2008 - 2009 | Visiting student | Argonne National Laboratory |
|---|
Awards and Honors
2012 CAS Presidential Scholarship
Selected Publications
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Midinfrared cavity-enhanced two-photon absorption spectroscopy for selective detection of trace gases
Y.-Z. Liu, M.-Y. Yu, Y.-D. Tan, J. Wang, C.-F. Cheng*, W. Jiang, and S.-M. Hu*
Analytical Chemistry 97(1): 848-853 (2025) -
Profiling a pulsed molecular beam with cavity-enhanced absorption spectroscopy
Z. Liu, Q.-H. Liu, C.-F. Cheng*, and S.-M. Hu
Review of Scientific Instruments 95(11): 115108 (2024) -
Preparation of high vibrational states in the entire molecular beam
Q.-H. Liu, H. Zhang, L. Wen, Y. Xie, T. Yang*, C.-F. Cheng*, S.-M. Hu, X.-M. Yang
Journal of Physical Chemistry Letters 15: 9926-9931 (2024) -
Mid-infrared - near-infrared double-resonance spectroscopy of molecules with kHz accuracy
Y.-D. Tan, C.-F. Cheng*, Y. Tan, S.-M. Hu
Optics Letters 49(5): 1109-1112 (2024) -
Precision spectroscopy of molecular hydrogen
Q.-H. Liu, Y. Tan*, C.-F. Cheng*, S.-M. Hu*
Physical Chemistry Chemical Physics 25: 27914-27925 (2023) -
Saturated absorption spectroscopy of HD at 76 K
Qian-Hao Liu, Ya-Nan Lv, Chang-Ling Zou, Cun-Feng Cheng*, Shui-Ming Hu
Physical Review A 106: 062805 (2022) -
Seeded optical parametric oscillator light source for precision spectroscopy
Z. -T. Zhang, Y. Tan, J. Wang, C. -F. Cheng*, Y. R. Sun, A. -W. Liu, S. -M. Hu*.
Optics Letters 45(4): 1013-1016 (2020) -
Determination of the interval between the ground states of para- and ortho-H₂
M. Beyer, N. Holsch, J. Hussels, C.-F. Cheng, E.J. Salumbides, K.S.E. Eikema, W. Ubachs, C. Jungen, F. Merkt
Physical Review Letters 123: 163002 (2019) -
Dissociation energy of the hydrogen molecule at 10 -9accuracy
C. –F. Cheng, J. Hussels, M. –L. Liu, H. L. Bethelem, K. S. E. Eikema, E. J. Salumbi des, W. Ubachs*, M. Beyer, N. Holsch, J. A. Agner, F. Merkt, L. -G. Tao, S. -M. Hu, Ch. Jungen.
Physical Review Letter 121, 013001 (2018) -
Molecular fountain
C. –F. Cheng, A. P. P. van der Poel, P. Jansen, M. Quintero-Pérez,T. E. Wall, W. Ubachs, H. L. Bethlem*
Physical Review Letter 117, 253201 (2016) -
Doppler broadening thermometry based on cavity ring-down spectroscopy
C.-F. Cheng, J. Wang, Y. R. Sun, Y. Tan, P. Kang, S. -M. Hu*
Metrologia 52: S385 (2015) -
Optical determination of the Boltzmann constant
C.-F. Cheng, Y. -R. Sun, S. -M. Hu*
Chinese Physics B (Invited Topical Review) 24(5):: 053301 (2015) -
Analysis of 85Kr: a comparison at the 10-14 level using micro-liter samples
G. -M. Yang, C. -F. Cheng, W. Jiang, Z. -T. Lu, R. Purtschert, Y. -R. Sun, L. -Y. Tu, S. -M. Hu*
Scientific Reports 3:1596 (2013) -
Normalization of the single atom counting rate in an atom trap
C. -F. Cheng, G. -M. Yang, W. Jiang, Y. -R. Sun, L. -Y. Tu, S. -M. Hu*
Opt. Lett. 38(1):31-33 (2013) -
Cavity ring-down spectroscopy of Doppler-broadened absorption line with sub-MHz absolute frequency accuracy
C.-F. Cheng, Y. R. Sun, H. Pan, Y. Lu, X.-F. Li, J. Wang, A.-W. Liu, and S.-M. Hu
Opt. Express 20(9):9956-9961 (2012) -
Electric-quadrupole transition of H2 determined to 10−9 precision
C. -F. Cheng, Y. R. Sun, H. Pan, J. Wang, A. -W. Liu, A. Campargue, S. -M. Hu*
Physical Review A 85(2):024501 (2012) -
An efficient magneto-optical trap of metastable krypton atoms
C. -F. Cheng, W. Jiang, G. -M. Yang, Y. -R. Sun, H. Pan, Y. Gao, A. -W. Liu, and S. -M. Hu*
Rev. Sci. Instrum 81:123106 (2010)