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We present to improve the fluorescence intensity of Cr4+:YAG crystalline fibers. The difference of dopant oxidation state results in variation of ESCA peaks and helps to identify the sites in which it takes place.
This study investigates the influence of SiO2 on fluorescence properties of Cr-doped glass and glass ceramic. The goal is to develop a novel glass which is resistant to SiO2 interaction during fiber drawing.
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