%0 Journal Article %T Study of optical properties of potassium permanganate (KMnO$_4$) doped poly(methylmethacrylate) (PMMA) composite films %A ANKIT KUMAR GUPTA %A MINAL BAFNA %A Y K VIJAY %J - %D 2018 %U https://www.ias.ac.in/describe/article/boms/041/06/0160