The Optical Properties of MgF2/Cr/MgF2, MgF2/Cu/MgF2, MgF2/Al/MgF2 Multi-Layered Thin Films
MgF2/Cr/MgF2, MgF2/Cu/MgF2, MgF2/Al/MgF2 다층박막의 광학적 특성
장강재;장건익;
Jang, Kang-Jae;Jang, Gun-Eik;
충북대학교 재료공학과;
Department of Advanced Material Engineering, Chungbuk National University;
DOI : 10.5695/JKISE.2007.40.5.241
$MgF_2$/Cr/$MgF_2$, $MgF_2$/Cu/$MgF_2$ and $MgF_2$/Al/$MgF_2$ multi-layered thin films were fabricated by evaporation system. $MgF_2$ and Cr(Cu, And Al) was selected as a low refractive index material and mid reflector layer, respectively. Optical properties including color effect were systematically studied in terms of different film layer by using spectrophotometer. Experimental results were compared to the simulation result. The films consistings of $MgF_2$/Cr/$MgF_2$, $MgF_2$/Cu/$MgF_2$, $MgF_2$/Al/$MgF_2$ multi-layered thin films showed wavelength range of $430{sim}780nm$, typically color range between greenish yellow and orange at view angle of $45^{circ}$. It was confirmed that this experimental result was well matched with simulation result.