Methods of Obtaining and Analyzing Low-Frequency Raman Spectra
Two methods are now used for recording Raman spectra: photographic and photoelectric. The latter method, in the form in which it is usually employed for studying Raman spectra, is unsuitable for recording low frequencies. This is because of the very strong continuous background, which lies close to the exciting line and falls off gradually on moving away from it. In the present investigation we used the photographic method of recording spectra; this was better than the photoelectric method because long exposures might reveal weak lines not susceptible to photoelectric recording.
KeywordsRaman Spectrum Photographic Plate Continuous Background Photographic Method Rotational Oscillation
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