At the invitation of He Li, director of the Shanghai Institute of Technical Physics (SITP), Mr. Alfred Yi Cho visited the institute on September 11th. 2010.

Mr. Alfred Yi Cho is a famous scientist who was awarded the National Medal of Science and the National Medal of Technology in U.S.A. in 1993 and in 2007 respectively. He is known as the "father of molecular beam epitaxy"; a technique he developed at that facility in the late 1960s. He is also the co-inventor, with Federico Capasso of quantum cascade lasers at Bell Labs in 1994.

During his visit, Mr. Alfred Yi Cho visited the research achievement show hall and the molecular beam epitaxy laborotary of the insititute, and talked with the researchers of the institute in the aspects of molecular beam epitaxy and its applications. He encouraged the young researchers to have innovative research ideas and look for entertainments in the dull research work..