For the nonlinear harmonic conversion of real laser beams, we have developed a theory by applying the spatial spectrumanalysis to the nonlinear coupling.
以按空间频谱展开方法，处理任意光束的非线性谐波转换过程。
2
EDS spectrumanalysis found that the process of laser cladding elements occurred in the proliferation of cladding layer and the substrate to achieve a good metallurgical bonding.
EDS能谱分析发现在激光熔覆的过程中发生了元素扩散，熔覆层与基体实现了良好的冶金结合。
3
The graft-copolymer was analyzed with infrared spectrum, thermal analysis, laser Raman spectum, and its structure was analyzed with scanning electron microscope.