Published 30 academic papers in academic journals at home and abroad. Teaching nonlinear optics courses for master students majoring in optics; He has successively won the first prize of provincial scientific and technological progress 1 item and the second prize of provincial scientific and technological progress; A scheme for measuring the weak absorption of medium with non-classical light is proposed and completed in the experiment. The experimental study of quantum QND-like measurement was successfully completed, and the results were published in phys.rev.lett. In the study of the interaction between laser and multi-level atoms, the Kerr nonlinear coefficient of EIT (electromagnetic induction transparency experimental study) enhanced Rb atom was measured with a ring cavity. At the same time, the experimental study on the slowdown of light speed (8000m/s) was completed. Based on the study of optical deceleration and nonlinear effect, the experimental research work of optical quantum storage and atomic coherent information dual-channel release is carried out. Left-handed circular polarization and right-handed circular polarization at 795nm are used as write control light and probe light respectively. Through the dynamic process of EIT coherence, the detection light signal is stored in two ground states of the atom, and the signal stored in the atomic coherence is read out with 795nm or 780nm "read" control light. The read-out 795nm or 780nm signal is spatially separated by a grating (Phys. Rev. A 72, 04380 1 (2005)). It provides a research basis for the next step of optical quantum dual-channel storage and release. On the basis of obtaining cold atomic cloud, the switch control of MOT is realized by acousto-optic modulator, which provides an experimental platform for the next step to study optical quantum correlation by using cold atomic medium. In international communication, he cooperated with Professor Xiao Min of the University of Arkansas. At present, experimental research on effective nonlinear effect and quantum entanglement between photons and atoms in weak light is being carried out, and new ways to realize single photon quantum switch and quantum logic gate are explored, which provides experimental basis for controllable manipulation of optical quantum information carriers.