Development of polarized laser scanning microscope and its use to quantitative analysis of rock textures

提出了用激光扫描显微镜（LSM）定量分析岩石结构的新技术。利用带偏振滤光片的LSM对岩石纹理进行了多种数字图像的采集。利用反射激光束的共聚焦图像对岩石试样表面形貌进行了分析。利用数字图像处理技术对岩石中的裂纹和晶界进行了清晰的可视化和分析。将岩石纹理在蓝色（B=488 nm）、绿色（G=568 nm）和红色（R=633 nm）激光束下的偏振图像叠加，构建彩色（RGB）图像。利用LSM精确测量了矿物的光学性质，如反射率和延迟。岩石结构的光谱成像使我们能够可视化所考虑的矿物的分布。用荧光图谱的强度检测沉积岩中的有机物。

New techniques of quantitative analysis of rock textures using a laser scanning microscope (LSM) are proposed. A LSM equipped with polarized filters was used to capture various kinds of digital images of rock texture. Confocal images of reflected laser beams were used to analyze surface topography of rock specimens. Cracks and grain boundaries in rocks were cleary visualized and analyzed by digital image processing techniques. Polarized images of rock textures under blue (B=488 nm), green (G=568 nm) and red (R=633 nm) laser beams were superimposed to construct color (RGB) images. Optical properties of minerals such as reflectance and retardation are accurately measured by the LSM.Spectroscopic imaging of rock texture enable us to viusalize the distribution of a mineral under considerlation. Organic materials in sedimentary rocks are detected in intensity of map of fluorescence.