We develop laser-based ultrasensitive trace analysis methods.
By performing precision measurements on atoms, molecules, and nuclei,
we study fundamental problems in physics and chemistry,
and develop applications in the earth and environmental sciences.

Radiokrypton dating

Radioactive isotope tracers are natural clocks in the environment.

Precision Spectroscopy of Few-Electron Systems and Fundamental Physical Tests

Atomic and molecular spectroscopy provides a critical window into the internal structure of matter and its interactions.

Atmospheric Molecules

Detection of Atmospheric Species by Laser Spectroscopy.

Quantum Metrology

The development of high-precision quantum measurement method is the future direction of metrology.

Manipulation and precise measurement of molecular quantum states

Prepare molecular vibrational-rotational quantum states via high-precision continuous-wave lasers.

EDM

An intrinsic electric dipole moment (EDM) of an atom signifies the violation of both parity (P) and time-reversal (T) symmetries.

Atomic devices

Atomic devices emerge from the combination of atomic spectroscopy with the miniaturization technology.

Radiocalcium dating

41Ca has important applications in fields such as Earth and Environmental Sciences.

We are part of CAS Center for Excellence in Quantum Information and Quantum Physics
and University of Science and Technology of China (USTC).
We are supported by a number of national programs, and collaborate widely with the international community.