We have the pleasure to welcome a new postdoctoral researcher in our group, Yoichi Sasaki, coming from Japan. He received his phD degree from Kyushu University in 2021 on near-infrared-to-visible photon upconversion, under the supervision of Prof. Nobuhiro Yanai and Prof. Nobuo Kimizuka. His research interests are photochemistry, physical chemistry and material chemistry. Welcome to him !