Cathodoluminescence Image Processing Script

The CL_Image_Processing_v21.m script processes .dm4 type cathodoluminescence data generated by Gatan Digital Micrograph software, outputted as a data cube (2 spatial axes as a constructed image, 1 spectral axes preset as wavelength or energy). It utilised a fitting algorithm for up to two gaussian response peaks, which is then mapped of all individual properties for comparisons (intensities, energies, peak widths and more). Absorptance plots are also built within each pixel and used to generate Urbach Energy maps, constrained spectrally by the peak behaviour of the CL response. In its current form, it is primarily optimised to analyse CdSeTe and CdSe semiconductor films, however the script can run wider spectral analysis to be transferrable for other materials, and can be further optimised within the script if necessary. Note: Ensure that the two additional script files (ReadDMFile.m and fire.m) are placed in the same folder as the processing script for the file to work. Additionally a wavelength/energy range must be in the data file name (the format will be displayed in an error messageCL_Image_Processing_v21.m 脚本用于处理由Gatan Digital Micrograph软件生成的.dm4格式阴极发光（cathodoluminescence）数据，此类数据以数据立方体形式输出：包含2个用于构建图像的空间轴，以及1个预设为波长或能量的光谱轴。该脚本采用最多可拟合两个高斯响应峰的算法，随后将所有单峰属性（强度、能量、峰宽等）进行映射以用于对比分析。此外，脚本还会在每个像素处构建吸收光谱图，并结合阴极发光响应的峰特性进行光谱约束，以此生成乌巴赫能量（Urbach Energy）分布图。当前版本的脚本主要针对CdSeTe与CdSe半导体薄膜的分析进行了优化，但也可开展更广泛的光谱分析以适配其他材料，且必要时可在脚本内部进行进一步优化。 注意：请确保将另外两个脚本文件ReadDMFile.m和fire.m与该处理脚本置于同一文件夹中，方可正常运行。此外，数据文件名中必须包含波长/能量范围信息，若格式不符，程序将显示错误提示信息。