[size=150:389ruu66]Prof. Jungwon Kim is the group leader of The Ultra-Scale Photonic Control and Measurement Group (&lt;!-- m --&gt;&lt;a class="postlink" href="http://upcam.kaist.ac.kr"&gt;http://upcam.kaist.ac.kr&lt;/a&gt;&lt;!-- m --&gt;) at Korean Advanced Institude of Science and Technology (KAIST). This group mainly works on Ultra-low jitter laser and RF sources and their improvement. Prof. Kim graduated from MIT with a Ph. D. degree and pays lots of attention in every single student. Almost all the students can work effectively in this group. <br><br>I visited this group last year and worked there for nearly three months. The students are all very kind, and I really learned a lot.[/size:389ruu66]