After long preparation, we completed to set-up PLD-sputtering chamber. I appreciated to numerous people including Prof. Cha, Dr. Kim, my students (especially Sangkyun), and funding agency. 

The PLD-sputtering setup has four targets for PLD and one sputtering gun (2"). In theory, we can make five-different chemicals without breaking vacuum. 

Later, we will set-up optical measurements setup for air-sensitive setup. So, we can study temperature- gas-environment-dependent optical study of nitrides, oxides, and metals.