1. Yonsei University, School of Mechanical Engineering, Nano Photonics Laboratory, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of KoreabSamsung Electronics Co. Ltd., Semiconductor R&D Center, Process Development 1 Team, San #16 Banwol-dong, Hwasung-
2. Yonsei University, School of Mechanical Engineering, Nano Photonics Laboratory, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea