Abstract
Amorphous chalcogenide thin films, especially a-(Se, S) based films, exhibit a number of photo-induced phenomena. In this study, we make the As40/Ge10/Se15/S35//Ag thin film and then we measure the holographic diffraction efficiency according to thickness of Ag. And we form the two-dimensional holographic grating. At first, we formed one-dimensional grating and then we form two-dimensional grating by rotate the sample. We found out the most suitable thickness of Ag and in case of As40/Ge10/Se15/S35//Ag(600), the diffraction efficiency was more higher than other samples. The holographic grating was formed by He-Ne laser(λ
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