The effect of laser (532 nm line of Verdi G) heating during the Raman measurements, on partial decomposition of Bi₁₂SiO₂₀ single crystal, was addressed in this study. The degree of decomposition directly depends on the power density and duration of the laser treatment, which are registered by the phonon Raman spectra. After laser treatment, AFM measurements register additional small spherical islands on the surface. Analysis performed on irradiated and unirradiated samples showed significant changes in transmission spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. The material obtained after laser irradiation can be described as specific nanocomposite consisting of bismuth oxide and silicon oxide-based nano-objects (dimensions below 15 nm in diameter), which are arranged in a matrix of Bi₁₂SiO₂₀.

中文翻译：

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激光加热对 Bi12SiO20 (BSO) 单晶部分分解的影响：拉曼研究

_{拉曼测量期间激光（Verdi G 的 532 nm 线）加热对 Bi 12} SiO ₂₀部分分解的影响单晶，在这项研究中得到解决。分解程度直接取决于激光处理的功率密度和持续时间，这由声子拉曼光谱记录。激光处理后，AFM 测量记录了表面上额外的小球岛。对辐照和未辐照样品进行的分析表明，透射光谱、X 射线衍射 (XRD) 模式、维尔德常数、磁光特性和吸收系数发生了显着变化。激光照射后得到的材料可以描述为特定的纳米复合材料，由氧化铋和氧化硅基纳米物体（直径小于15nm的尺寸）组成，它们排列在Bi 12 SiO 20 的_基体_中。