Monochromatic radiation diode lasers

A Raman spectrophotometer analyzes the radiation scattered by molecules when they are illuminated with monochromatic exciting radiation. Currently, most Raman spectrometers are either FT instruments equipped with cooled germanium transducers or multichannel instruments based upon CCDs. These transducers, in contrast to photomultiplier tubes, are sensitive to radiation at 785 nm produced by diode lasers, which provide Raman excitation of many compounds without significant fluorescence. CCDs are not sensitive to the 1064-nm radiation from an Nd/YAG laser. 

Molybdenum target. X-ray, 304,311 Momentum, angular, in NMR, 499 Monochromatic radiation Beer law, 158 diode lasers, 173 incoherent, 169 Monochromator, 180-189 dispersion, 185 echelle spectrograph, 261 effect of slit width on resolution. 188... 

SSI X probe spectrometer (model SSXlOO) using a monochromatic A1 Ka radiation (1486 eV). Temperature programmed reduction was carried out with a quadrupole Balzers spectrometer QMS 311 100 mg of catalyst mixed with 100 mg of Pt/AlaOa were put in a U-shaped tubular quartz reactor and heated under H2 flow (5% in N2, 60 ml/min) from room temperature to 750°C with a heating rate of 5°C/min. Raman spectra were collected with a Perkin Elmer System 2000 NIR FT-Raman using as excitation radiation the 5 harmonic of a diode pumped Nd YAG laser (1065 nm). 

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