Experience
Education
Bio
My research group pursues world-class performance in ultra-low-noise lasers and their new engineering applications.

Current on-going research projects include
- Ultrafast, sub-nanometer-precision, and multi-functional TOF sensing and imaging (supported by NRF)
- Integrated and accurate optical frequency synthesizers for quantum sensors (supported by IITP)
- Combining optical metrology and machine learning for advanced semiconductor manufacturing (supported by Samsung Electronics Co)
- Photonics-based low-jitter, low-skew, low-power clock distribution networks (supported by Samsung Future Technology Center)
- Precise timing control and synchronization for ultrafast electron science facilities (supported by KAERI)
- Ultralow-noise and synchronized microwave generation at multiple remote locations for VLBI (supported by NST)Honors and Awards
- Scientist of the Month (이달의 과학기술인상) from Ministry of Science and ICT of Republic of Korea, Oct 2020
- Haelim Photonics Award (해림 광자공학상) from Optical Society of Korea (OSK), Feb 2018
- Outstanding Teaching Award (Fall 2017 semester) from KAIST ME, Feb 2018
- 2015 Top 10 Research Accomplishments of KAIST, May 2016
- KAIST Technology Innovation Award (Outstanding Prize), Dec 2015
- DAAD Scholarship for visiting research at Max-Planck Institute for Quantum Optics (MPQ), Jul 2013
- Ewon Endowed Chair Assistant/Associate Professorship, 2012-2015
- Outstanding Teaching Award (Spring 2010 semester) from KAIST ME, Sep 2010
- IEEE Lasers and Electro-Optics Society (LEOS) Graduate Fellowship Award, Oct 2006
- Morris Joseph Levin Award from MIT EECS for the outstanding master thesis presentation, May 2004
- Samsung Scholarship Foundation Doctoral Fellowship, 2002-2007
- President's Award for the top-ranked graduate in Engineering, Seoul National University, Feb 1999
- Silver Medalist of the 26th International Chemistry Olympiad (Oslo, Norway), Jul 1994
Honors and Awards
- Scientist of the Month (이달의 과학기술인상) from Ministry of Science and ICT of Republic of Korea, Oct 2020
- Haelim Photonics Award (해림 광자공학상) from Optical Society of Korea (OSK), Feb 2018
- Outstanding Teaching Award (Fall 2017 semester) from KAIST ME, Feb 2018
- 2015 Top 10 Research Accomplishments of KAIST, May 2016
- KAIST Technology Innovation Award (Outstanding Prize), Dec 2015
- DAAD Scholarship for visiting research at Max-Planck Institute for Quantum Optics (MPQ), Jul 2013
- Ewon Endowed Chair Assistant/Associate Professorship, 2012-2015
- Outstanding Teaching Award (Spring 2010 semester) from KAIST ME, Sep 2010
- IEEE Lasers and Electro-Optics Society (LEOS) Graduate Fellowship Award, Oct 2006
- Morris Joseph Levin Award from MIT EECS for the outstanding master thesis presentation, May 2004
- Samsung Scholarship Foundation Doctoral Fellowship, 2002-2007
- President's Award for the top-ranked graduate in Engineering, Seoul National University, Feb 1999
- Silver Medalist of the 26th International Chemistry Olympiad (Oslo, Norway), Jul 1994