Raman microprobe experiments

A few wood sections were delignified using the acid chlorite method [14] (sample 2). In order to obtain sample 3, a 1.6-jxm spot in the S2 cell wall of a cross section was laser-delignified (514.5-nm line) by exposing it in a Raman microprobe experiment [15]. In our laboratory, it has been observed that the... 

Initial experiments on DLC were conducted with Raman microprobes however, the opportunity afforded by the application of Raman spectroscopy for the measurement of DLC film properties have led to a number of instrument companies introducing nonmicroscope-based analyzers tailored specifically for this market. Raman microscope systems are currently extensively used in the area of failure analysis. In this application, the high spatial resolution obtainable with a Raman microprobe is useful for the identification of small defects and contaminants. 

Because light microscopes of any sort are uncommon in chemistry and physics laboratories, Raman microspectroscopy is an easy way to excite the student s curiosity. Straightforward experiments are more interesting when conducted on barely visible specks of material. Even simple photochemistry can be studied in the microprobe. Voor and coworkers use microspectroscopy to assay a C qICjo fullerene mixture and then follow its decay over 130 sec in a 3-mW focused 514-nm beam [5]. 

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