found:Optical studies of ultra-thin WSe₂, 2015, via WWW, Aug. 23, 2016:PDF title page (Xiaodong Xu) abstract (Assistant Professor Xiaodong Xu, Physics and Materials Science & Engineering; University of Washington)
found:Xiaodong Xu's CV, via WWW, Aug. 23, 2016(2002-2008, PhD in Physics, University of Michigan, Ann Arbor; 1997-2002, B.S. in Applied Physics Department, University of Science and Technology of China)