Abstract
WORK has been carried out in this laboratory on the frequency change in scattered light (Raman effect), using a plane polarised beam. The preliminary results seem sufficiently interesting to be worth publishing even in an incomplete form. With carbon tetrachloride and an unpolarised beam, it is found that the modified lines of wave-lengths 4400 A., 4419 A., and 4447 A., produced by subtracting the quanta corresponding to the infra-red wave-lengths 46μ, 32μ, and 22μ from the violet mercury line 4358 A., are all about equally strong. If the exciting light is plane polarised, the line 4447 A. is missing when the scattered light is examined in the plane of polarisation of the incident light, but appears with about twice the intensity of the other two when observed in a direction at right angles to it.
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LINDEMANN, F., KEELEY, T. & HALL, N. Frequency Change in Scattered Light. Nature 122, 921 (1928). https://doi.org/10.1038/122921a0
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DOI: https://doi.org/10.1038/122921a0
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