Research

What is Biophotonics?
 
The capability for biosensing, biomedical imaging, and biomolecular manipulation has become essential in current biomedical research and development. Light is very attractive in that it can be utilized for all these functions. Biophotonics is recently regarded as the key science and technology for the next generation of clinical tools and biomedical research instruments. This research area, however, is still in need for advanced micro-optic and nanophotonic devices. 
 
For last decade, a remarkable achievement in nano/microscale manufacturing of engineering materials has been rapidly stimulated by MEMS and NEMS (Micro/Nano Electro-Mechanical systems) technology and moreover high sensitive metrological techniques at micro/nanoscale level lead physiologists to deeper understanding on the working mechanism of physiological structures in nature.
 
 
Prof. Ki-Hun Jeong’s Research Statement at KAIST

Ki-Hun Jeong is currently a full professor in the department of Bio and Brain Engineering at KAIST in Korea, as well as an adjunct professor at KAIST Institute for Health Science and Technology. He received PhD degree in mechanical engineering from the University of California at Berkeley in 2005 after a B.S. and M.S. degree in mechanical engineering from Sungkyunkwan University in 1996 and 1998, respectively. After a post-doctoral position in the department of electrical engineering at UC Berkeley in 2005-2006, he joined as an assistant professor in the department of bio and brain engineering 
at KAIST in 2006.
 
His previous research interests during PhD (Adviser: Prof. Luke P. Lee in Bioengineering) and post-doctoral 
(Adviser: Prof. Ming C. Wu) studies at UC Berkeley were the design, 
microfabrication, and measurement of biophotonic MEMS for biomedical sensing and imaging applications such as biomimetic advanced photonic devices, nanomechanical biophysical sensors , nanogap based dielectric spectroscopic biosensors, and laser scanning MEMS endoscopes. In particular, his main achievement on biomimetic advanced photonic system was published in Science in 2006, entitled as “Biologically Inspired Artificial Compound Eyes”. This work received huge attentions from over 40
 international/Korean News media. This work provides a new paradigm for developing wide field-of-view imaging or fast motion motion detection in surveillance detectors, mini-robots, and miniaturized imaging systems such as endoscopes, digital cameras or mobile phones.

His current research interests at KAIST include Optical MEMS and nanophotonics that can be inspired from biology and also utilized for advanced biological science or biomedical applications. After he joined at KAIST as an assistant professor, his academic backgrounds on photonic design, diverse micro/nanofabrication, and photonic measurements have been modified and stimulated to focus on the following three specific topics among broad biophotonic areas, also aligned with the personal academic strength as well as the long term objectives of the department of bio and brain engineering at KAIST. 

His major focused areas of research are as follows, 
A. Endoscopic functional cameras
B. Endoscopic microscopes  
C. Nanobioplasmonic biosensors for molecular diagnostics

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