Measurement of Raman scattering independent of fluorescence

Details Measurement of Raman scattering independent of fluorescence Measurement of Raman scattering independent of fluorescence

1976-10-26

1978-03-21

Evans, F. L.

Optics: measuring and testing

Oil testing

G01J 344

Patent

active

040800733

ABSTRACT:
Apparatus for separating radiation due to Raman scattering from a background of fluorescence.
A sample of freely rotating molecules is exposed to monochromatic radiation of a fixed plane polarization. The resulting Raman radiation will be strongly polarized while any fluorescence will be essentially non-polarized. Orthogonal components are sequentially received by a detector which responds with output signals. The difference in signals corresponds to the Raman intensity independent of fluorescence.

REFERENCES:
patent: 3807862 (1974-04-01), Hatzenbuhler
patent: 3914055 (1975-10-01), Wolga et al.
Arquello et al., Applied Optics, vol. 13, No. 8, Aug. 1974, pp. 1731 and 1732.
Duyne et al., Analytical Chemistry, vol. 46, No. 2, Feb. 1974, pp. 213-222.

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