Article ID Journal Published Year Pages File Type
1485678 Journal of Non-Crystalline Solids 2007 4 Pages PDF
Abstract

Holographic recording by He–Ne laser (line 632.8 nm) light in amorphous As0.55Se0.45 thin films for different film thickness and grating period was studied. A strong dependence of the diffraction efficiency of the gratings on the readout light wavelength (650 nm, 805 nm and 1150 nm) was observed. A decrease in diffraction efficiency for longer wavelengths is explained by a decrease in the photoinduced changes of refractive index. It is shown that high efficiency gratings can be recorded in As0.55Se0.45 films with a thickness of ∼1 μm.

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Physical Sciences and Engineering Materials Science Ceramics and Composites
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