Chen-Hao Feng is a Higher Scientist in the Optical Frequency Metrology group, having joined NPL in 2022 to work on strontium optical lattice clocks. This involves running the lattice clocks to make contributions to International Atomic Time (TAI) and verifying the clocks’ frequency outputs through comparisons against other clocks around the world. Chen-Hao also carries out research to improve clock performance, such as developing methods to characterise blackbody radiation and lattice light shift uncertainties, as well as exploring more efficient atom-loading schemes.
Before joining NPL, Chen-Hao completed her PhD at the University of Bordeaux, working on strontium atom interferometers. Her work there endeavored to advance the development of large-scale atom interferometry based on a single-photon atom interferometer, which is a competitive candidate for detecting dark matter and gravitational waves. Prior to this, Chen-Hao completed an MSc, where she gained experience developing a cryogenic microwave frequency standard, featuring ultra-low phase noise, for the Al+ clock in the Time and Frequency Measurement group at Huazhong University of Science and Technology.
Beyond her primary focus on metrology, Chen-Hao also keeps a keen eye on emerging quantum sensing technologies driven by optical clocks and atom interferometers.
Areas of interest
- Enhancing the stability and accuracy of state-of-the-art optical lattice clocks
- Facilitating the development of advanced optical frequency comparisons
- Numerical simulations for novel light-matter interaction methods
- Integrating electronics and AMO concepts
Key publications
- Duty cycle engineering for improved optical lattice clock stability
F. Butuc-Mayer, M. Johnson, C.-H. Feng, W. Bowden, R. Hobson, and I. R. Hill
Journal of Physics: Conference Series 2889, 012049 (2024)
- High flux strontium atom source
C.-H. Feng, P. Robert, P. Bouyer, B. Canuel, J. Li, S. Das, C. C. Kwong, D. Wilkowski, M. Prevedelli, and A. Bertoldi
Quantum Science and Technology 9, 025017 (2024)
- High power continuous laser at 461 nm based ona compact and high-efficiency frequency-doubling linear cavity
C.-H. Feng, S. Vidal, P. Robert, P. Bouyer, B. Desruelle, M. Prevedelli, J. Boullet, G. Santarelli, and A. Bertoldi
Optics Express 29, 27760-27767 (2021)
- Fast control of atom-light interaction in a narrow linewidth cavity
A. Bertoldi, C.-H. Feng, D. S. Naik, B. Canuel, P. Bouyer, and M. Prevedelli
Physical Review Letters 127, 013202, (2021)
- A control hardware based on a field programmable gatearray for experiments in atomic physics
A. Bertoldi, C.-H. Feng, H. Eneriz, M. Carey, D. S. Naik, J. Junca, X. Zou, D. O. Sabulsky, B. Canuel, P. Bouyer, and M. Prevedelli
Review of Scientific Instruments 91, 033203 (2020)
Email Chen-Hao Feng
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