Before joining NUS, he was a research scientist at Teledyne Scientific Company (formerly known as Rockwell Science Center) where he led several cutting-edge R&D projects funded by ARPA-E, NASA, and Rockwell Automation. He received his doctoral degree from UCLA in 2010 (advisor: Prof. Eric P.Y. Chiou) and was further trained as a post-doctoral researcher at the UCLA Optofluidic Systems Laboratory.