Hongkyu Eoh joined Thomas group as a Ph.D. student in August 2020. He is from Seoul, South Korea and received his B.S. and M.S. degree in Materials Science & Engineering from Yonsei University, where he focused on the photonic crystal using the self-assembled block copolymer. His main research interest is on the laser-induced projectile impact test (LIPIT). He is also interested in the in-situ slice view technique.