Comparisons of led and laser induced blood fluorescence spectra indicate that the latter can show partly fine structure of blood cells . the absorption of the fluorophores to the wavelength of exciting light has definite selectivity , which depend on energy level structure and state of the fluorophores 对led光和激光诱导血细胞荧光光谱比较研究的结果表明，用激光激发时可以显现血细胞荧光光谱的部分精细结构；血细胞中的荧光团对激发光波长具有一定的选择性，这种选择是由其自身的能级结构和状态所决定的。
Sections were stained by he and were observed under light microscope . ( 4 ) observation on cell - matrix complex with confocal microscope . cell - matrix complex was stained by fluorochrome cfda - am ( loug / ml , looul ) after 7 days incubation , the sample was scanned by confocal microscope to observe cell - growth in the matrix 细胞一多孔膜复合物的激光共聚焦显微镜观察：取培养7天的细胞一多孔膜复合物，以10ug inl的荧光染料cfad am100ul染色，檄光共聚焦显微镜检测激光激发的绿色荧光，扫描成像观察活细胞生长倩况。
The progress of laser ultrasonics has been discussed especially for the laser - generated surface acoustic wave . the transform process of energy from light to ultrasonic has been analyzed . the generation mechanism of laser - generated surface acoustic wave has been discussed in detail excluding thermo - elastic mode and illumination mode 介绍了激光超声领域的研究进展，分析了光致超声过程中，能量从光能到声能的转换，归纳了用激光激发声表面波的机理，讨论了两种主要的模型：热弹模型和融蚀模型。
