Abstract
In this paper, we conducted MATLAB simulation using the reflectance formula and the Planck's black body radiation principle, for the purpose of identifying the opimum material and thickness of anti-reflective coating from double layered structures. We found that the optimum condition was obtained when refractive index of upper layer is 1.44 and that of lower layer is 2.29. As materials close to these refractive indices, as the upper layer and , ZnS, as the lower layer were suggested. The best result in an average reflectance of 2.759% was obtained from a double layered structure of 94 nm/ZnS 55 nm.
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