Research Article
Optical Feedback for Sensitivity Enhancement in Direct Raman Detection of Liquids
Figure 3
(a) The Raman signal intensity as a function of Raman shift and the location depth of the flat feedback mirror underneath the liquid surface. (b) The Raman signal peak intensity I(z) at 895 cm−1 at different depths (z) of the flat optical feedback mirror. Blue curve: calculation of dI(z)/d(z). Inset: schematic illustration of the measurement setup.
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