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Optical properties of $SiO_2$ and $TiO_2$ thin films deposited by electron beam process with and without ion-beam source  

Song, M.K. (Department of Materials Engineering, Korea Aerospace University)
Yang, W.S. (Nano-Bio Center, Korea Electronics Technology Institute)
Kwon, S.W. (School of Advanced Materials Science and Engineering, Sungkunkan University)
Lee, H.M. (Nano-Bio Center, Korea Electronics Technology Institute)
Kim, W.K. (Nano-Bio Center, Korea Electronics Technology Institute)
Lee, H.Y. (Nano-Bio Center, Korea Electronics Technology Institute)
Yoon, D.H. (School of Advanced Materials Science and Engineering, Sungkunkan University)
Song, Y.S. (Department of Materials Engineering, Korea Aerospace University)
Abstract
The $SiO_2$ and $TiO_2$ thin films for the multilayer interference filter application were manufactured by electron beam process. In case of electron beam process with ion source, the anode current was controlled by gas volume ratio of $O_2$ and Ar. Substrate temperature of electron beam deposition without ion source was increased from 100 to $250^{\circ}C$ with $50^{\circ}C$ increment. The surface roughness values of $SiO_2$ thin films was most low value at $200^{\circ}C$ substrate temperature and 0.2 A anode current respectively. And the surface roughness values of $TiO_2$ thin films was most low value at room temperature and 0.2 A anode current repectively. The refractive index of $SiO_2$ and $TiO_2$ thin films to be deposited with ion source was usually lower than that of thin films without ion source.
Keywords
e-Beam; ion beam assisted deposition;
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