From October 13 to 15, 2023, Prof. Bian Hongtao and Prof. Ma Jiani of the Photonic Nose and Molecular Materials Group participated in the Third National Symposium on Ultrafast Vibration Spectroscopy held in Wuhu, Anhui Province. Bian Hongtao gave an invited presentation titled Host-guest Interaction-based Ion Recognition and Study on Ultrafast Infrared Spectroscopy. Postdoctoral Researcher Guo Yan won the Excellent Poster Award.