Ultra-Violet Raman Spectrum of Water

Abstract

So far, the study of the Raman effect has been confined to the visible region of the spectrum only. By the use of an all-quartz apparatus similar to that of glass used by Prof. Wood (Phil. Mag., Oct. 1928), I was able to obtain the effect in the ultra-violet region for water in two hours. Fig. 1 shows that for every bright line in the mercury arc spectrum, there is a Raman band in the spectrum of the light scattered by water. There are altogether eleven bands clearly noticeable in the spectrum, which are marked with arrows. Measurements of the wave-lengths of these Raman bands have shown that water has an absorption band at 2.97 +mn 0.05 , in close agreement with the values ranging from 2.95 to 3.06 from previous infra-red absorption measurements.

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RAO, I. Ultra-Violet Raman Spectrum of Water. Nature 123, 87 (1929). https://doi.org/10.1038/123087c0

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