In order to promote disciplinary innovation, intersection and integration, and promote cross-field cooperation between research groups, on September 7, the Photonic Nose and Molecular Materials Group invited Assoc. Prof. Wang Ruohui of the School of Physics of Northwest University and Prof. Li Xiaohui of the School of Physics and Information Technology of Shaanxi Normal University for an academic exchange seminar in the Lecture Hall 1668 of Zhizhi Building. Teachers and graduate students of the group attended the exchange meeting, which was chaired by Prof. Liu Jing.

In his report titled “Optical Fiber Logging Technology for Oil and Gas Resources”, Wang Ruohui first presented a brief introduction of the principle, characteristics, application fields and development prospects of optical fiber sensing, and then used engineering cases to introduce the application of optical fiber sensing technology in oil and gas exploration and other fields, as well as the latest progress of his research group in the research of optical fiber grating seismic detection, seismic physical model optical fiber ultrasonic imaging, and fiber grating high temperature and high pressure sensing.

In his report titled “Nonlinear Optical Properties of Low-dimensional Materials and Research on Ultrafast Fiber Laser Technology”, Li Xiaohui introduced the preparation and nonlinear optical characterization characteristics of nonlinear photonic devices based on transition metal sulfides, metal oxides, diazo metal elemental materials, Mxene, metal-organic framework materials, graphene and other low-dimensional narrow bandgap materials, and explored their application in ultrafast photonics, as well as the generation of ultrafast fiber laser pulses, the dynamic behavior of pulses and the special evolutionary laws of these materials.