Aiming at the scientific frontiers and major national needs in precision spectroscopy and quantum detection, we have established three internationally competitive experimental research platforms: precision optical frequency comb spectroscopy, ultrafast molecular manipulation, and infrared photon detection. These platforms are dedicated to developing novel principles and methodologies that enhance the precision, sensitivity, stability, spatial resolution, and spectral resolution of optical-field control and precision spectroscopy, thereby expanding the connotation, concepts, and application domains of optical-field precision control.

—Full-Band Optical Frequency Comb Precision Spectroscopy

Develop novel methods for time-frequency-domain precision control and high-accuracy coherent transfer of optical fields in new spectral bands (e.g., extreme ultraviolet and mid-to-far-infrared). Address key scientific challenges including coherent transfer of time-frequency control across different bands, phase noise suppression in high-power amplification of femtosecond frequency combs, and coherent transfer in high-order nonlinear processes. Achieve high-resolution detection of molecular vibration-rotation fingerprint spectra using multi-band femtosecond frequency combs, enabling spatiotemporally ultrahigh-resolution and spectrally ultrahigh-precision control in complex molecular systems.

—Ultrafast Precision Molecular Spectroscopy

Explore new methods and technologies for coherent control of extreme ultrafast electron wave packet dynamics in molecules, high-resolution detection of molecular vibration-rotation fingerprint spectra, and temporally/spectrally high-resolution nonlinear resonant excitation and manipulation of molecules. Enable higher-precision photon manipulation at ultrafast timescales to deepen understanding of molecular internal structures and dynamical processes, thereby discovering new phenomena and fundamental principles.

—Single-Photon Nonlinear Optics and Applications

Investigate quantum properties of femtosecond frequency combs and explore the integration of time-frequency-domain optical-field precision control (high accuracy/resolution) with photon manipulation (high sensitivity). Realize synergistic control of photons and atoms, high-fidelity quantum transduction and manipulation, and establish quantum-limit ultrasensitive spectroscopic techniques. Develop novel technologies for efficient single-photon detection and manipulation, applying photon precision control to single-photon information processing and communication. Provide practical technologies and innovative devices for constructing optical quantum transmission and computing networks.