2021 Joe Harms, PhDGhazal Shafai-Erfani, PhDYingzi Liu, PhDGraduated June 2021 2019 Tonghe Wang, PhDGraduated July 2019 2018 Nivedh Manohar, PhDGraduated July 2018 2017 Jonathan Rosenfield, PhDGraduated July 2017 2016 Xiaofeng Yang, PhDGraduated May 2016 Xue Dong, PhDGraduated December 2016 2014 Greg Betzel, PhDGraduated July 2014 Peter Park, PhDTransferred August 2014 2013 Vorakarn Chanyavanich, PhDGraduated July 2013 2012 Arsalan Siddiqi, MSGraduated August 2012