Surface modification using ion beam, surface study using ion scattering spectroscopy, epitaxial thin film growth using ion beam assisted deposition

1979∼1982 Assistant Professor, Dongguk University
1982∼ Professor, Yonsei University
1985∼1986 Visiting Professor, Montana State University
1995∼ Director of Atomic-scale Surface Science Research Center, Yonsei University
2003~ President, Korean Physical Society
1997∼ 2002 Vice President, Korean Physical Society
1999∼ Vice President, Korean Vacuum Society

1995 The Korean Physical Society Award for Outstanding Research
1995 The Korean Federation of Science & Technology Societies Award for Outstanding Papers
1990 Korean Ministry of Science & Technology Award for Outstanding Research and Development
1987 The Korean Physical Society Award for Outstanding Papers